{"id":18402,"date":"2021-01-25T06:44:09","date_gmt":"2021-01-25T06:44:09","guid":{"rendered":"https:\/\/www.dumpsbase.com\/freedumps\/?p=18402"},"modified":"2021-01-25T06:44:14","modified_gmt":"2021-01-25T06:44:14","slug":"mongodb-certified-dba-associate-exam-c100dba-real-dumps-questions","status":"publish","type":"post","link":"https:\/\/www.dumpsbase.com\/freedumps\/mongodb-certified-dba-associate-exam-c100dba-real-dumps-questions.html","title":{"rendered":"MongoDB Certified DBA Associate Exam C100DBA Real Dumps Questions"},"content":{"rendered":"\n<p>C100DBA MongoDB Certified DBA Associate Exam is a great exam, which is for administrators with knowledge of the concepts and mechanics of MongoDB. We recommend this certification for operations professionals who know the fundamentals and have some professional experience administering MongoDB. Based on the skills and topics, we have collected new exam questions and answers in C100DBA dumps to ensure that candidates can pass C100DBA MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) exam successfully.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Check MongoDB C100DBA Free Dumps Online First<\/h2>\n\n\n\n<script>\n\t  window.fbAsyncInit = function() {\n\t    FB.init({\n\t      appId            : '622169541470367',\n\t      autoLogAppEvents : true,\n\t      xfbml            : true,\n\t      version          : 'v3.1'\n\t    });\n\t  };\n\t\n\t  (function(d, s, id){\n\t     var js, fjs = d.getElementsByTagName(s)[0];\n\t     if (d.getElementById(id)) {return;}\n\t     js = d.createElement(s); js.id = id;\n\t     js.src = \"https:\/\/connect.facebook.net\/en_US\/sdk.js\";\n\t     fjs.parentNode.insertBefore(js, fjs);\n\t   }(document, 'script', 'facebook-jssdk'));\n\t<\/script><script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam5114\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.dumpsbase.com\/freedumps\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-5114\"><\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-5114\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-165508'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>Which features of relational database management systems were deliberately omitted in MongoDB and help us to obtain horizontal scalability? Check all that apply.<\/div><input type='hidden' name='question_id[]' id='qID_1' value='165508' \/><input type='hidden' id='answerType165508' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165508[]' id='answer-id-670900' class='answer   answerof-165508 ' value='670900'   \/><label for='answer-id-670900' id='answer-label-670900' class=' answer'><span>Multi-statement transactions<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165508[]' id='answer-id-670901' class='answer   answerof-165508 ' value='670901'   \/><label for='answer-id-670901' id='answer-label-670901' class=' answer'><span>Joins<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165508[]' id='answer-id-670902' class='answer   answerof-165508 ' value='670902'   \/><label for='answer-id-670902' id='answer-label-670902' class=' answer'><span>Authentication<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-165509'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>The following aggregation option is used to specify the specific fields that needs to be passed to the next stage of the aggregation pipeline:<\/div><input type='hidden' name='question_id[]' id='qID_2' value='165509' \/><input type='hidden' id='answerType165509' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165509[]' id='answer-id-670903' class='answer   answerof-165509 ' value='670903'   \/><label for='answer-id-670903' id='answer-label-670903' class=' answer'><span>$project<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165509[]' id='answer-id-670904' class='answer   answerof-165509 ' value='670904'   \/><label for='answer-id-670904' id='answer-label-670904' class=' answer'><span>$aggregate<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165509[]' id='answer-id-670905' class='answer   answerof-165509 ' value='670905'   \/><label for='answer-id-670905' id='answer-label-670905' class=' answer'><span>$match<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165509[]' id='answer-id-670906' class='answer   answerof-165509 ' value='670906'   \/><label for='answer-id-670906' id='answer-label-670906' class=' answer'><span>$group<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-165510'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>In a collection that contains 100 post documents, what does the following command do? db. posts. find().skip(5).limit(5)<\/div><input type='hidden' name='question_id[]' id='qID_3' value='165510' \/><input type='hidden' id='answerType165510' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165510[]' id='answer-id-670907' class='answer   answerof-165510 ' value='670907'   \/><label for='answer-id-670907' id='answer-label-670907' class=' answer'><span>Skip and limit nullify each other. Hence returning the first five documents.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165510[]' id='answer-id-670908' class='answer   answerof-165510 ' value='670908'   \/><label for='answer-id-670908' id='answer-label-670908' class=' answer'><span>Skips the first five documents and returns the next five<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165510[]' id='answer-id-670909' class='answer   answerof-165510 ' value='670909'   \/><label for='answer-id-670909' id='answer-label-670909' class=' answer'><span>Limits the first five documents and then return them in reverse order<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165510[]' id='answer-id-670910' class='answer   answerof-165510 ' value='670910'   \/><label for='answer-id-670910' id='answer-label-670910' class=' answer'><span>Skips the first five documents and returns the sixth document five times<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-165511'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>CORRECT TEXT <br \/>\r<br>What tool do you use to see if you have a problem in the consumption of disk I \/ 0?<\/div><input type='hidden' name='question_id[]' id='qID_4' value='165511' \/><input type='hidden' id='answerType165511' value='textarea'><!-- end question-content--><\/div><div class='question-choices '><p><textarea name='answer-165511[]' id='textarea_q_165511' class='watupro-textarea-medium' rows='5' cols='80'><\/textarea>\n<\/p><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-165512'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>Which of the following is supported by MongoDB?<\/div><input type='hidden' name='question_id[]' id='qID_5' value='165512' \/><input type='hidden' id='answerType165512' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165512[]' id='answer-id-670912' class='answer   answerof-165512 ' value='670912'   \/><label for='answer-id-670912' id='answer-label-670912' class=' answer'><span>Transaction Management<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165512[]' id='answer-id-670913' class='answer   answerof-165512 ' value='670913'   \/><label for='answer-id-670913' id='answer-label-670913' class=' answer'><span>ACID Transactions<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165512[]' id='answer-id-670914' class='answer   answerof-165512 ' value='670914'   \/><label for='answer-id-670914' id='answer-label-670914' class=' answer'><span>Journaling<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165512[]' id='answer-id-670915' class='answer   answerof-165512 ' value='670915'   \/><label for='answer-id-670915' id='answer-label-670915' class=' answer'><span>Relationships between Collections (Primary Key Foreign Key)<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-165513'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>The MongoDB explain() method does not support which of the following verbosity mode:<\/div><input type='hidden' name='question_id[]' id='qID_6' value='165513' \/><input type='hidden' id='answerType165513' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165513[]' id='answer-id-670916' class='answer   answerof-165513 ' value='670916'   \/><label for='answer-id-670916' id='answer-label-670916' class=' answer'><span>executionStats<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165513[]' id='answer-id-670917' class='answer   answerof-165513 ' value='670917'   \/><label for='answer-id-670917' id='answer-label-670917' class=' answer'><span>queryPlanner<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165513[]' id='answer-id-670918' class='answer   answerof-165513 ' value='670918'   \/><label for='answer-id-670918' id='answer-label-670918' class=' answer'><span>customExecutionStats<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165513[]' id='answer-id-670919' class='answer   answerof-165513 ' value='670919'   \/><label for='answer-id-670919' id='answer-label-670919' class=' answer'><span>allPlansExecution<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-165514'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>Consider a collection posts which has fields: Jd, post_text, post_author, post_timestamp, post_tags etc. <br \/>\r<br>Which of the following query retrieves ONLY the key named post_text from the first document retrieved?<\/div><input type='hidden' name='question_id[]' id='qID_7' value='165514' \/><input type='hidden' id='answerType165514' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165514[]' id='answer-id-670920' class='answer   answerof-165514 ' value='670920'   \/><label for='answer-id-670920' id='answer-label-670920' class=' answer'><span>db.posts.finOne({},{_id:0, post_text:1})<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165514[]' id='answer-id-670921' class='answer   answerof-165514 ' value='670921'   \/><label for='answer-id-670921' id='answer-label-670921' class=' answer'><span>db.posts.findOne({post_text: 1})<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165514[]' id='answer-id-670922' class='answer   answerof-165514 ' value='670922'   \/><label for='answer-id-670922' id='answer-label-670922' class=' answer'><span>db.posts.find({},{_id:Of post_text:1})<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165514[]' id='answer-id-670923' class='answer   answerof-165514 ' value='670923'   \/><label for='answer-id-670923' id='answer-label-670923' class=' answer'><span>db.posts.finOne&laquo;},{post_text:l})<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-165515'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>In a sharded replica set environment, the w Option provides ability for write concern and j Option provides ability for the data to be written on disk journal. Consider that we have a seven member replica set and we want to assure that the writes are committed to journal. <br \/>\r<br>What should be the value of j?<\/div><input type='hidden' name='question_id[]' id='qID_8' value='165515' \/><input type='hidden' id='answerType165515' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165515[]' id='answer-id-670924' class='answer   answerof-165515 ' value='670924'   \/><label for='answer-id-670924' id='answer-label-670924' class=' answer'><span>1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165515[]' id='answer-id-670925' class='answer   answerof-165515 ' value='670925'   \/><label for='answer-id-670925' id='answer-label-670925' class=' answer'><span>2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165515[]' id='answer-id-670926' class='answer   answerof-165515 ' value='670926'   \/><label for='answer-id-670926' id='answer-label-670926' class=' answer'><span>0<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165515[]' id='answer-id-670927' class='answer   answerof-165515 ' value='670927'   \/><label for='answer-id-670927' id='answer-label-670927' class=' answer'><span>7<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-165516'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>Aggregation Pipelines have a limit of:<\/div><input type='hidden' name='question_id[]' id='qID_9' value='165516' \/><input type='hidden' id='answerType165516' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165516[]' id='answer-id-670928' class='answer   answerof-165516 ' value='670928'   \/><label for='answer-id-670928' id='answer-label-670928' class=' answer'><span>2 MB document and 100 MB RAM<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165516[]' id='answer-id-670929' class='answer   answerof-165516 ' value='670929'   \/><label for='answer-id-670929' id='answer-label-670929' class=' answer'><span>16 MB document and 100 MB RAM<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165516[]' id='answer-id-670930' class='answer   answerof-165516 ' value='670930'   \/><label for='answer-id-670930' id='answer-label-670930' class=' answer'><span>No limit on document and 100 MB RAM<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165516[]' id='answer-id-670931' class='answer   answerof-165516 ' value='670931'   \/><label for='answer-id-670931' id='answer-label-670931' class=' answer'><span>2 MB document and no limit on RAM<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-165517'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>What is the maximum size of a MongoDB document?<\/div><input type='hidden' name='question_id[]' id='qID_10' value='165517' \/><input type='hidden' id='answerType165517' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165517[]' id='answer-id-670932' class='answer   answerof-165517 ' value='670932'   \/><label for='answer-id-670932' id='answer-label-670932' class=' answer'><span>2 MB<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165517[]' id='answer-id-670933' class='answer   answerof-165517 ' value='670933'   \/><label for='answer-id-670933' id='answer-label-670933' class=' answer'><span>12 MB<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165517[]' id='answer-id-670934' class='answer   answerof-165517 ' value='670934'   \/><label for='answer-id-670934' id='answer-label-670934' class=' answer'><span>There is no maximum size. It depends on the RA<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165517[]' id='answer-id-670935' class='answer   answerof-165517 ' value='670935'   \/><label for='answer-id-670935' id='answer-label-670935' class=' answer'><span>16 MB<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-11' style=';'><div id='questionWrap-11'  class='   watupro-question-id-165518'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>If the value of totalKeysExamined is 30000 and the value of totalDocsExamined is 0, which of the following option is correct?<\/div><input type='hidden' name='question_id[]' id='qID_11' value='165518' \/><input type='hidden' id='answerType165518' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165518[]' id='answer-id-670936' class='answer   answerof-165518 ' value='670936'   \/><label for='answer-id-670936' id='answer-label-670936' class=' answer'><span>None of the above<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165518[]' id='answer-id-670937' class='answer   answerof-165518 ' value='670937'   \/><label for='answer-id-670937' id='answer-label-670937' class=' answer'><span>The query used an index to fetch the results<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165518[]' id='answer-id-670938' class='answer   answerof-165518 ' value='670938'   \/><label for='answer-id-670938' id='answer-label-670938' class=' answer'><span>The query returned 0 documents<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165518[]' id='answer-id-670939' class='answer   answerof-165518 ' value='670939'   \/><label for='answer-id-670939' id='answer-label-670939' class=' answer'><span>The query returned 30000 documents after scanning the documents<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-12' style=';'><div id='questionWrap-12'  class='   watupro-question-id-165519'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>Given a collection posts as shown below having a document array comments, which of the following command will create an index on the comment author descending? <br \/>\r<br><br><img decoding=\"async\" width=366 height=376 src=\"https:\/\/www.dumpsbase.com\/freedumps\/wp-content\/uploads\/2021\/01\/image002-63.jpg\" v:shapes=\"_x0000_i1025\"><br><\/div><input type='hidden' name='question_id[]' id='qID_12' value='165519' \/><input type='hidden' id='answerType165519' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165519[]' id='answer-id-670940' class='answer   answerof-165519 ' value='670940'   \/><label for='answer-id-670940' id='answer-label-670940' class=' answer'><span>db.posts.createIndex({commerits.$.author&quot;:-l});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165519[]' id='answer-id-670941' class='answer   answerof-165519 ' value='670941'   \/><label for='answer-id-670941' id='answer-label-670941' class=' answer'><span>db.posts.createIndex({comments.$.author&quot;: {$desc:l&gt;});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165519[]' id='answer-id-670942' class='answer   answerof-165519 ' value='670942'   \/><label for='answer-id-670942' id='answer-label-670942' class=' answer'><span>db.posts.createIndex({comments.author&quot;:-l});<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-13' style=';'><div id='questionWrap-13'  class='   watupro-question-id-165520'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>Which option should be used to update all the documents with the specified condition in the MongoDB query?<\/div><input type='hidden' name='question_id[]' id='qID_13' value='165520' \/><input type='hidden' id='answerType165520' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165520[]' id='answer-id-670943' class='answer   answerof-165520 ' value='670943'   \/><label for='answer-id-670943' id='answer-label-670943' class=' answer'><span>specify {all: true} as the third parameter of update command<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165520[]' id='answer-id-670944' class='answer   answerof-165520 ' value='670944'   \/><label for='answer-id-670944' id='answer-label-670944' class=' answer'><span>updateAII instead of update<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165520[]' id='answer-id-670945' class='answer   answerof-165520 ' value='670945'   \/><label for='answer-id-670945' id='answer-label-670945' class=' answer'><span>specify {updateAII: true} as the third parameter of update command<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165520[]' id='answer-id-670946' class='answer   answerof-165520 ' value='670946'   \/><label for='answer-id-670946' id='answer-label-670946' class=' answer'><span>specify {multi: true} as the third parameter of update command<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-14' style=';'><div id='questionWrap-14'  class='   watupro-question-id-165521'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>Which mongodb tool is used to report details on number of database operations in MongoDB?<\/div><input type='hidden' name='question_id[]' id='qID_14' value='165521' \/><input type='hidden' id='answerType165521' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165521[]' id='answer-id-670947' class='answer   answerof-165521 ' value='670947'   \/><label for='answer-id-670947' id='answer-label-670947' class=' answer'><span>mongorestore<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165521[]' id='answer-id-670948' class='answer   answerof-165521 ' value='670948'   \/><label for='answer-id-670948' id='answer-label-670948' class=' answer'><span>mongostat<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165521[]' id='answer-id-670949' class='answer   answerof-165521 ' value='670949'   \/><label for='answer-id-670949' id='answer-label-670949' class=' answer'><span>mongodump<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165521[]' id='answer-id-670950' class='answer   answerof-165521 ' value='670950'   \/><label for='answer-id-670950' id='answer-label-670950' class=' answer'><span>mongotop<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-15' style=';'><div id='questionWrap-15'  class='   watupro-question-id-165522'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>In a sharded replica set environment, the w Option provides ability for write concern and j Option provides ability for the data to be written on disk journal. Consider that we have a seven member replica set and we want to assure that the writes are committed to journal. <br \/>\r<br>What should be the value of j?<\/div><input type='hidden' name='question_id[]' id='qID_15' value='165522' \/><input type='hidden' id='answerType165522' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165522[]' id='answer-id-670951' class='answer   answerof-165522 ' value='670951'   \/><label for='answer-id-670951' id='answer-label-670951' class=' answer'><span>7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165522[]' id='answer-id-670952' class='answer   answerof-165522 ' value='670952'   \/><label for='answer-id-670952' id='answer-label-670952' class=' answer'><span>2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165522[]' id='answer-id-670953' class='answer   answerof-165522 ' value='670953'   \/><label for='answer-id-670953' id='answer-label-670953' class=' answer'><span>1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165522[]' id='answer-id-670954' class='answer   answerof-165522 ' value='670954'   \/><label for='answer-id-670954' id='answer-label-670954' class=' answer'><span>0<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-16' style=';'><div id='questionWrap-16'  class='   watupro-question-id-165523'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>What read preference should your application use if you want to read from the primary under normal circumstances but allow reads from secondaries when a primary is unavailable?<\/div><input type='hidden' name='question_id[]' id='qID_16' value='165523' \/><input type='hidden' id='answerType165523' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165523[]' id='answer-id-670955' class='answer   answerof-165523 ' value='670955'   \/><label for='answer-id-670955' id='answer-label-670955' class=' answer'><span>secondaryPreferred<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165523[]' id='answer-id-670956' class='answer   answerof-165523 ' value='670956'   \/><label for='answer-id-670956' id='answer-label-670956' class=' answer'><span>Secondary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165523[]' id='answer-id-670957' class='answer   answerof-165523 ' value='670957'   \/><label for='answer-id-670957' id='answer-label-670957' class=' answer'><span>nearest<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165523[]' id='answer-id-670958' class='answer   answerof-165523 ' value='670958'   \/><label for='answer-id-670958' id='answer-label-670958' class=' answer'><span>primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165523[]' id='answer-id-670959' class='answer   answerof-165523 ' value='670959'   \/><label for='answer-id-670959' id='answer-label-670959' class=' answer'><span>primaryPreferred<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-17' style=';'><div id='questionWrap-17'  class='   watupro-question-id-165524'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>Which of the following operators is used to updated a document partially?<\/div><input type='hidden' name='question_id[]' id='qID_17' value='165524' \/><input type='hidden' id='answerType165524' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165524[]' id='answer-id-670960' class='answer   answerof-165524 ' value='670960'   \/><label for='answer-id-670960' id='answer-label-670960' class=' answer'><span>$set<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165524[]' id='answer-id-670961' class='answer   answerof-165524 ' value='670961'   \/><label for='answer-id-670961' id='answer-label-670961' class=' answer'><span>$update<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165524[]' id='answer-id-670962' class='answer   answerof-165524 ' value='670962'   \/><label for='answer-id-670962' id='answer-label-670962' class=' answer'><span>$project<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165524[]' id='answer-id-670963' class='answer   answerof-165524 ' value='670963'   \/><label for='answer-id-670963' id='answer-label-670963' class=' answer'><span>$modify<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-18' style=';'><div id='questionWrap-18'  class='   watupro-question-id-165525'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>What is the first task that a secondary would perform on being prompted by another secondary for an election?<\/div><input type='hidden' name='question_id[]' id='qID_18' value='165525' \/><input type='hidden' id='answerType165525' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165525[]' id='answer-id-670964' class='answer   answerof-165525 ' value='670964'   \/><label for='answer-id-670964' id='answer-label-670964' class=' answer'><span>Start the election process for primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165525[]' id='answer-id-670965' class='answer   answerof-165525 ' value='670965'   \/><label for='answer-id-670965' id='answer-label-670965' class=' answer'><span>Vote for the first secondary so that it would become the next primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165525[]' id='answer-id-670966' class='answer   answerof-165525 ' value='670966'   \/><label for='answer-id-670966' id='answer-label-670966' class=' answer'><span>Vote for itself and then call for election<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165525[]' id='answer-id-670967' class='answer   answerof-165525 ' value='670967'   \/><label for='answer-id-670967' id='answer-label-670967' class=' answer'><span>Connect to primary to confirm its availability<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-19' style=';'><div id='questionWrap-19'  class='   watupro-question-id-165526'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>Which of the documents below will be retrieved by the following query? Assume the documents are stored in a collection called &quot;sample&quot;. Check all that apply. <br \/>\r<br>db.sample.find( { &quot;$or&quot; : [ { &quot;a&quot; : { &quot;$in&quot; : [ 3, 10] &gt; }, { &quot;b&quot; : { &quot;$lt&quot; : 2 &gt; &gt; ] &gt; )<\/div><input type='hidden' name='question_id[]' id='qID_19' value='165526' \/><input type='hidden' id='answerType165526' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670968' class='answer   answerof-165526 ' value='670968'   \/><label for='answer-id-670968' id='answer-label-670968' class=' answer'><span>{''__id&quot; :3, &quot;a&quot;: 4, &quot;c&quot; :0, &quot;b&quot; :14}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670969' class='answer   answerof-165526 ' value='670969'   \/><label for='answer-id-670969' id='answer-label-670969' class=' answer'><span>{''_Jd&quot; :7, &quot;a&quot;: 8, &quot;c&quot; :1, &quot;b&quot; :7}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670970' class='answer   answerof-165526 ' value='670970'   \/><label for='answer-id-670970' id='answer-label-670970' class=' answer'><span>{&quot;.Jd&quot; :6, &quot;a&quot;: 1, &quot;c&quot; :1, &quot;b&quot; :5}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670971' class='answer   answerof-165526 ' value='670971'   \/><label for='answer-id-670971' id='answer-label-670971' class=' answer'><span>{ ''Jd&quot; :9, &quot;a&quot;: 17, &quot;c&quot;: 1, &quot;b&quot;: 1}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670972' class='answer   answerof-165526 ' value='670972'   \/><label for='answer-id-670972' id='answer-label-670972' class=' answer'><span>{ Jd&quot; :10,&quot;a&quot;: 3, &quot;c&quot;: 1, &quot;b&quot;: 1}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670973' class='answer   answerof-165526 ' value='670973'   \/><label for='answer-id-670973' id='answer-label-670973' class=' answer'><span>{&quot;.Jd&quot; :: 2, &quot;a&quot;: 2, &quot;c&quot; :: 0, &quot;b&quot;: 1}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670974' class='answer   answerof-165526 ' value='670974'   \/><label for='answer-id-670974' id='answer-label-670974' class=' answer'><span>{&quot;.Jd&quot; :: 4, &quot;a&quot;: 5, &quot;c&quot; :: 0, &quot;b&quot;: 17}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670975' class='answer   answerof-165526 ' value='670975'   \/><label for='answer-id-670975' id='answer-label-670975' class=' answer'><span>{&quot;.Jd&quot; :: 1, &quot;a&quot;: 0, &quot;c&quot; :: 0, &quot;b&quot;: 2}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670976' class='answer   answerof-165526 ' value='670976'   \/><label for='answer-id-670976' id='answer-label-670976' class=' answer'><span>{&quot;.Jd&quot; :: 5, &quot;a&quot;: 3, &quot;c&quot; :: 0, &quot;b&quot;: 12}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165526[]' id='answer-id-670977' class='answer   answerof-165526 ' value='670977'   \/><label for='answer-id-670977' id='answer-label-670977' class=' answer'><span>{&quot;.Jd&quot; :: 8, &quot;a&quot;: 11, &quot;c&quot;: 1, &quot;b&quot;: 0}<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-20' style=';'><div id='questionWrap-20'  class='   watupro-question-id-165527'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>JSON stands for<\/div><input type='hidden' name='question_id[]' id='qID_20' value='165527' \/><input type='hidden' id='answerType165527' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165527[]' id='answer-id-670978' class='answer   answerof-165527 ' value='670978'   \/><label for='answer-id-670978' id='answer-label-670978' class=' answer'><span>JavaScript Object Notation<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165527[]' id='answer-id-670979' class='answer   answerof-165527 ' value='670979'   \/><label for='answer-id-670979' id='answer-label-670979' class=' answer'><span>JavaScript Object Naming<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165527[]' id='answer-id-670980' class='answer   answerof-165527 ' value='670980'   \/><label for='answer-id-670980' id='answer-label-670980' class=' answer'><span>JavaScript Object Notice<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165527[]' id='answer-id-670981' class='answer   answerof-165527 ' value='670981'   \/><label for='answer-id-670981' id='answer-label-670981' class=' answer'><span>None of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-21' style=';'><div id='questionWrap-21'  class='   watupro-question-id-165528'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>21. <\/span>What is the replication factor for a replicated cluster with 1 primary, 3 secondaries with one of them hidden. The set also has an arbiter?<\/div><input type='hidden' name='question_id[]' id='qID_21' value='165528' \/><input type='hidden' id='answerType165528' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165528[]' id='answer-id-670982' class='answer   answerof-165528 ' value='670982'   \/><label for='answer-id-670982' id='answer-label-670982' class=' answer'><span>None of the above<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165528[]' id='answer-id-670983' class='answer   answerof-165528 ' value='670983'   \/><label for='answer-id-670983' id='answer-label-670983' class=' answer'><span>5<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165528[]' id='answer-id-670984' class='answer   answerof-165528 ' value='670984'   \/><label for='answer-id-670984' id='answer-label-670984' class=' answer'><span>3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165528[]' id='answer-id-670985' class='answer   answerof-165528 ' value='670985'   \/><label for='answer-id-670985' id='answer-label-670985' class=' answer'><span>4<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-22' style=';'><div id='questionWrap-22'  class='   watupro-question-id-165529'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>22. <\/span>Which operations add new documents to a collection?<\/div><input type='hidden' name='question_id[]' id='qID_22' value='165529' \/><input type='hidden' id='answerType165529' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165529[]' id='answer-id-670986' class='answer   answerof-165529 ' value='670986'   \/><label for='answer-id-670986' id='answer-label-670986' class=' answer'><span>Create<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165529[]' id='answer-id-670987' class='answer   answerof-165529 ' value='670987'   \/><label for='answer-id-670987' id='answer-label-670987' class=' answer'><span>update<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165529[]' id='answer-id-670988' class='answer   answerof-165529 ' value='670988'   \/><label for='answer-id-670988' id='answer-label-670988' class=' answer'><span>insert<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165529[]' id='answer-id-670989' class='answer   answerof-165529 ' value='670989'   \/><label for='answer-id-670989' id='answer-label-670989' class=' answer'><span>delete<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-23' style=';'><div id='questionWrap-23'  class='   watupro-question-id-165530'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>23. <\/span>Consider that you have a collection called population which has fields state and city. <br \/>\r<br>Which of the following query will calculate the population grouped by state and city?<\/div><input type='hidden' name='question_id[]' id='qID_23' value='165530' \/><input type='hidden' id='answerType165530' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165530[]' id='answer-id-670990' class='answer   answerof-165530 ' value='670990'   \/><label for='answer-id-670990' id='answer-label-670990' class=' answer'><span>db.population.aggregate( [{ $group: { _id: { state: &quot;$state&quot;, city; &quot;$city&quot; },pop: { $sum: 1 &gt; &gt; &gt;] )<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165530[]' id='answer-id-670991' class='answer   answerof-165530 ' value='670991'   \/><label for='answer-id-670991' id='answer-label-670991' class=' answer'><span>db.population.aggregate( [{ $group: { _id: { state: Estate&quot;, city: &quot;$city&quot; },pop: { $pop: 1 } } }] )<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165530[]' id='answer-id-670992' class='answer   answerof-165530 ' value='670992'   \/><label for='answer-id-670992' id='answer-label-670992' class=' answer'><span>db.population.aggregate( [{ $group: { _id: { state: Estate&quot;, city: n$city&quot; },pop: { $sum: &quot;$pop&quot; } } }] )<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165530[]' id='answer-id-670993' class='answer   answerof-165530 ' value='670993'   \/><label for='answer-id-670993' id='answer-label-670993' class=' answer'><span>db.population.aggregate( [{ $group: { _id: { city: &quot;$city&quot; },pop: { $sum: &quot;$pop&quot; } } }] )Multi Document Transaction is not supported by MongoDB<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-24' style=';'><div id='questionWrap-24'  class='   watupro-question-id-165531'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>24. <\/span>Which of the following is true about sharding?<\/div><input type='hidden' name='question_id[]' id='qID_24' value='165531' \/><input type='hidden' id='answerType165531' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165531[]' id='answer-id-670994' class='answer   answerof-165531 ' value='670994'   \/><label for='answer-id-670994' id='answer-label-670994' class=' answer'><span>Creating a sharded key automatically creates an index on the collection using that key<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165531[]' id='answer-id-670995' class='answer   answerof-165531 ' value='670995'   \/><label for='answer-id-670995' id='answer-label-670995' class=' answer'><span>We cannot change a shard key directly\/automatically once it is set up<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165531[]' id='answer-id-670996' class='answer   answerof-165531 ' value='670996'   \/><label for='answer-id-670996' id='answer-label-670996' class=' answer'><span>A sharded environment does not support sorting functionality since the documents lie on various mongod instances<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165531[]' id='answer-id-670997' class='answer   answerof-165531 ' value='670997'   \/><label for='answer-id-670997' id='answer-label-670997' class=' answer'><span>Sharding is enabled at the database level<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-25' style=';'><div id='questionWrap-25'  class='   watupro-question-id-165532'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>25. <\/span>Which of the tags in a replica set configuration specify the operations to be read from the node with the least network latency?<\/div><input type='hidden' name='question_id[]' id='qID_25' value='165532' \/><input type='hidden' id='answerType165532' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165532[]' id='answer-id-670998' class='answer   answerof-165532 ' value='670998'   \/><label for='answer-id-670998' id='answer-label-670998' class=' answer'><span>netLatency<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165532[]' id='answer-id-670999' class='answer   answerof-165532 ' value='670999'   \/><label for='answer-id-670999' id='answer-label-670999' class=' answer'><span>secondaryPreferred<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165532[]' id='answer-id-671000' class='answer   answerof-165532 ' value='671000'   \/><label for='answer-id-671000' id='answer-label-671000' class=' answer'><span>nearest<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165532[]' id='answer-id-671001' class='answer   answerof-165532 ' value='671001'   \/><label for='answer-id-671001' id='answer-label-671001' class=' answer'><span>primaryPreferred<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-26' style=';'><div id='questionWrap-26'  class='   watupro-question-id-165533'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>26. <\/span>What is the output of the following program?<\/div><input type='hidden' name='question_id[]' id='qID_26' value='165533' \/><input type='hidden' id='answerType165533' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165533[]' id='answer-id-671002' class='answer   answerof-165533 ' value='671002'   \/><label for='answer-id-671002' id='answer-label-671002' class=' answer'><span>60 s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165533[]' id='answer-id-671003' class='answer   answerof-165533 ' value='671003'   \/><label for='answer-id-671003' id='answer-label-671003' class=' answer'><span>1s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165533[]' id='answer-id-671004' class='answer   answerof-165533 ' value='671004'   \/><label for='answer-id-671004' id='answer-label-671004' class=' answer'><span>100 s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165533[]' id='answer-id-671005' class='answer   answerof-165533 ' value='671005'   \/><label for='answer-id-671005' id='answer-label-671005' class=' answer'><span>100 ms<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-27' style=';'><div id='questionWrap-27'  class='   watupro-question-id-165534'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>27. <\/span>Which node in a replica set does accept write operation?<\/div><input type='hidden' name='question_id[]' id='qID_27' value='165534' \/><input type='hidden' id='answerType165534' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165534[]' id='answer-id-671006' class='answer   answerof-165534 ' value='671006'   \/><label for='answer-id-671006' id='answer-label-671006' class=' answer'><span>arbiter<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165534[]' id='answer-id-671007' class='answer   answerof-165534 ' value='671007'   \/><label for='answer-id-671007' id='answer-label-671007' class=' answer'><span>hidden<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165534[]' id='answer-id-671008' class='answer   answerof-165534 ' value='671008'   \/><label for='answer-id-671008' id='answer-label-671008' class=' answer'><span>primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165534[]' id='answer-id-671009' class='answer   answerof-165534 ' value='671009'   \/><label for='answer-id-671009' id='answer-label-671009' class=' answer'><span>secondary<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-28' style=';'><div id='questionWrap-28'  class='   watupro-question-id-165535'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>28. <\/span>Using an arbiter allows one to easily ensure an odd number of voters in replica sets. <br \/>\r<br>Why is this important?<\/div><input type='hidden' name='question_id[]' id='qID_28' value='165535' \/><input type='hidden' id='answerType165535' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165535[]' id='answer-id-671010' class='answer   answerof-165535 ' value='671010'   \/><label for='answer-id-671010' id='answer-label-671010' class=' answer'><span>To help in disaster recovery<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165535[]' id='answer-id-671011' class='answer   answerof-165535 ' value='671011'   \/><label for='answer-id-671011' id='answer-label-671011' class=' answer'><span>To protect agains network partitions<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165535[]' id='answer-id-671012' class='answer   answerof-165535 ' value='671012'   \/><label for='answer-id-671012' id='answer-label-671012' class=' answer'><span>To enable certain read preference settings<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165535[]' id='answer-id-671013' class='answer   answerof-165535 ' value='671013'   \/><label for='answer-id-671013' id='answer-label-671013' class=' answer'><span>To add greather redundancy<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165535[]' id='answer-id-671014' class='answer   answerof-165535 ' value='671014'   \/><label for='answer-id-671014' id='answer-label-671014' class=' answer'><span>For more efficient backup operations<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-29' style=';'><div id='questionWrap-29'  class='   watupro-question-id-165536'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>29. <\/span>Which of the following statements are true about the $match pipeline operator? Check all that apply.<\/div><input type='hidden' name='question_id[]' id='qID_29' value='165536' \/><input type='hidden' id='answerType165536' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165536[]' id='answer-id-671015' class='answer   answerof-165536 ' value='671015'   \/><label for='answer-id-671015' id='answer-label-671015' class=' answer'><span>You should use it early as possible in the pipeline<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165536[]' id='answer-id-671016' class='answer   answerof-165536 ' value='671016'   \/><label for='answer-id-671016' id='answer-label-671016' class=' answer'><span>It can be used as many time as needed.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165536[]' id='answer-id-671017' class='answer   answerof-165536 ' value='671017'   \/><label for='answer-id-671017' id='answer-label-671017' class=' answer'><span>It has a sintax similar to findQ commands.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-30' style=';'><div id='questionWrap-30'  class='   watupro-question-id-165537'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>30. <\/span>That RSI and RS2 can be primary? <br \/>\r<br>You had to see the different configurations, RS3 could be hidden or priority 0 (But not a referee because we need 3 replicas), while RSI and RS2 could NOT have priority 0 or be hidden or anything like that . <br \/>\r<br>In a 4-member RS RSO, RSI, RS2 and RS3 + Referee, RSO (primary) falls after some write operations that have replicated RSI and RS2 (but NOT RS3), who can get up as the new primary? <br \/>\r<br>The configuration comes and in it we see that RS2 has a hidden: true (or a priority: 0, (I don't remember)<\/div><input type='hidden' name='question_id[]' id='qID_30' value='165537' \/><input type='hidden' id='answerType165537' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165537[]' id='answer-id-671018' class='answer   answerof-165537 ' value='671018'   \/><label for='answer-id-671018' id='answer-label-671018' class=' answer'><span>ORS1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165537[]' id='answer-id-671019' class='answer   answerof-165537 ' value='671019'   \/><label for='answer-id-671019' id='answer-label-671019' class=' answer'><span>ORS2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165537[]' id='answer-id-671020' class='answer   answerof-165537 ' value='671020'   \/><label for='answer-id-671020' id='answer-label-671020' class=' answer'><span>ORS3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165537[]' id='answer-id-671021' class='answer   answerof-165537 ' value='671021'   \/><label for='answer-id-671021' id='answer-label-671021' class=' answer'><span>O arbiter<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165537[]' id='answer-id-671022' class='answer   answerof-165537 ' value='671022'   \/><label for='answer-id-671022' id='answer-label-671022' class=' answer'><span>RSO<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-31' style=';'><div id='questionWrap-31'  class='   watupro-question-id-165538'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>31. <\/span>Given a replica set with five data-bearing members, suppose the primary goes down with operations in its oplog that have been copied from the primary to only one secondary. <br \/>\r<br>Assuming no other problems occur, which of the following describes what is most likely to happen?<\/div><input type='hidden' name='question_id[]' id='qID_31' value='165538' \/><input type='hidden' id='answerType165538' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165538[]' id='answer-id-671023' class='answer   answerof-165538 ' value='671023'   \/><label for='answer-id-671023' id='answer-label-671023' class=' answer'><span>missing operations will need to be manually re-performed<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165538[]' id='answer-id-671024' class='answer   answerof-165538 ' value='671024'   \/><label for='answer-id-671024' id='answer-label-671024' class=' answer'><span>the secondary with the most current oplog will be elected primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165538[]' id='answer-id-671025' class='answer   answerof-165538 ' value='671025'   \/><label for='answer-id-671025' id='answer-label-671025' class=' answer'><span>reads will be stale until the primary comes back up<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165538[]' id='answer-id-671026' class='answer   answerof-165538 ' value='671026'   \/><label for='answer-id-671026' id='answer-label-671026' class=' answer'><span>the primary may roll back the operations once it recovers<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165538[]' id='answer-id-671027' class='answer   answerof-165538 ' value='671027'   \/><label for='answer-id-671027' id='answer-label-671027' class=' answer'><span>the most current secondary will roll back the operations following the election<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-32' style=';'><div id='questionWrap-32'  class='   watupro-question-id-165539'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>32. <\/span>Which command can be used to rebuild the indexes on a collection in MongoDB?<\/div><input type='hidden' name='question_id[]' id='qID_32' value='165539' \/><input type='hidden' id='answerType165539' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165539[]' id='answer-id-671028' class='answer   answerof-165539 ' value='671028'   \/><label for='answer-id-671028' id='answer-label-671028' class=' answer'><span>db.collection.createlndex({relndex:l})<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165539[]' id='answer-id-671029' class='answer   answerof-165539 ' value='671029'   \/><label for='answer-id-671029' id='answer-label-671029' class=' answer'><span>db.collection.reIndex({author:l})<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165539[]' id='answer-id-671030' class='answer   answerof-165539 ' value='671030'   \/><label for='answer-id-671030' id='answer-label-671030' class=' answer'><span>db.collection.relndexQ<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165539[]' id='answer-id-671031' class='answer   answerof-165539 ' value='671031'   \/><label for='answer-id-671031' id='answer-label-671031' class=' answer'><span>db.collection.createIndex({author:l}).reIndex()<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-33' style=';'><div id='questionWrap-33'  class='   watupro-question-id-165540'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>33. <\/span>What does the totalKeysExamined field returned by the explain method indicate?<\/div><input type='hidden' name='question_id[]' id='qID_33' value='165540' \/><input type='hidden' id='answerType165540' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165540[]' id='answer-id-671032' class='answer   answerof-165540 ' value='671032'   \/><label for='answer-id-671032' id='answer-label-671032' class=' answer'><span>Number of documents that match the query condition<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165540[]' id='answer-id-671033' class='answer   answerof-165540 ' value='671033'   \/><label for='answer-id-671033' id='answer-label-671033' class=' answer'><span>Number of index entries scanned<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165540[]' id='answer-id-671034' class='answer   answerof-165540 ' value='671034'   \/><label for='answer-id-671034' id='answer-label-671034' class=' answer'><span>Details the completed execution of the winning plan as a tree of stages<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165540[]' id='answer-id-671035' class='answer   answerof-165540 ' value='671035'   \/><label for='answer-id-671035' id='answer-label-671035' class=' answer'><span>Number of documents scanned<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-34' style=';'><div id='questionWrap-34'  class='   watupro-question-id-165541'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>34. <\/span>In order to ensure that you can maintain high availability in the face of server failure, you should implement which of the following?<\/div><input type='hidden' name='question_id[]' id='qID_34' value='165541' \/><input type='hidden' id='answerType165541' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165541[]' id='answer-id-671036' class='answer   answerof-165541 ' value='671036'   \/><label for='answer-id-671036' id='answer-label-671036' class=' answer'><span>Sharding<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165541[]' id='answer-id-671037' class='answer   answerof-165541 ' value='671037'   \/><label for='answer-id-671037' id='answer-label-671037' class=' answer'><span>Properly defined user roles<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165541[]' id='answer-id-671038' class='answer   answerof-165541 ' value='671038'   \/><label for='answer-id-671038' id='answer-label-671038' class=' answer'><span>Replication<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165541[]' id='answer-id-671039' class='answer   answerof-165541 ' value='671039'   \/><label for='answer-id-671039' id='answer-label-671039' class=' answer'><span>Put indexes on all of your documents<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165541[]' id='answer-id-671040' class='answer   answerof-165541 ' value='671040'   \/><label for='answer-id-671040' id='answer-label-671040' class=' answer'><span>The proper storage engine<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-35' style=';'><div id='questionWrap-35'  class='   watupro-question-id-165542'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>35. <\/span>Which option can be used with update command so that a new document gets created if no matching document is found based on the query condition?<\/div><input type='hidden' name='question_id[]' id='qID_35' value='165542' \/><input type='hidden' id='answerType165542' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165542[]' id='answer-id-671041' class='answer   answerof-165542 ' value='671041'   \/><label for='answer-id-671041' id='answer-label-671041' class=' answer'><span>upsert command instead of update command<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165542[]' id='answer-id-671042' class='answer   answerof-165542 ' value='671042'   \/><label for='answer-id-671042' id='answer-label-671042' class=' answer'><span>{update: true, insert: true} as the third parameter of update command<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165542[]' id='answer-id-671043' class='answer   answerof-165542 ' value='671043'   \/><label for='answer-id-671043' id='answer-label-671043' class=' answer'><span>This has to be handled in application code (Node.js, PHP, JAVA, C#, etc.) and cannot be handled in mongo shell query<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165542[]' id='answer-id-671044' class='answer   answerof-165542 ' value='671044'   \/><label for='answer-id-671044' id='answer-label-671044' class=' answer'><span>Specify {upsert : true } as the third parameter of update command<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-36' style=';'><div id='questionWrap-36'  class='   watupro-question-id-165543'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>36. <\/span>Dada una coleccion, cuales devuelve con la siguiente query db.coleccion.find({nombre:&quot;ruben&quot;,apellido:&quot;gomez&quot;},{nombre:l,apellido:l,aficion:l});<\/div><input type='hidden' name='question_id[]' id='qID_36' value='165543' \/><input type='hidden' id='answerType165543' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165543[]' id='answer-id-671045' class='answer   answerof-165543 ' value='671045'   \/><label for='answer-id-671045' id='answer-label-671045' class=' answer'><span>{ &quot;-id&quot; : Objectld(&quot;580a42b5dfblb5al7427d302&quot;), &quot;nombre&quot; : &quot;ruben&quot;, &quot;apellido&quot; : &quot;gomez&quot;, &quot;aficion&quot; : v u &quot;flipar&quot; }<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165543[]' id='answer-id-671046' class='answer   answerof-165543 ' value='671046'   \/><label for='answer-id-671046' id='answer-label-671046' class=' answer'><span>{ &quot;_id&quot; : Objectld(&quot;580a42acdfblb5al7427d301&quot;), &quot;nombre&quot; : &quot;Luis&quot;, &quot;apellido&quot; : &quot;gomez&quot;, &quot;aficion&quot; : u &quot;flipar&quot; }<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165543[]' id='answer-id-671047' class='answer   answerof-165543 ' value='671047'   \/><label for='answer-id-671047' id='answer-label-671047' class=' answer'><span>{ &quot;_id&quot; : Objectld(&quot;580a42acdfblb5al7427d301&quot;), &quot;nombre&quot; : &quot;ruben&quot;, &quot;apellido&quot; : &quot;Pablo&quot;, &quot;aficion&quot; : u &quot;flipar&quot;}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-165543[]' id='answer-id-671048' class='answer   answerof-165543 ' value='671048'   \/><label for='answer-id-671048' id='answer-label-671048' class=' answer'><span>{ &quot;_id&quot; : Objectld(&quot;580a42acdfblb5al7427d301&quot;), &quot;nombre&quot; : &quot;ruben&quot;, &quot;apellido&quot; : &quot;gomez&quot;&gt;<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-37' style=';'><div id='questionWrap-37'  class='   watupro-question-id-165544'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>37. <\/span>MongoDB is<\/div><input type='hidden' name='question_id[]' id='qID_37' value='165544' \/><input type='hidden' id='answerType165544' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165544[]' id='answer-id-671049' class='answer   answerof-165544 ' value='671049'   \/><label for='answer-id-671049' id='answer-label-671049' class=' answer'><span>None of the above<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165544[]' id='answer-id-671050' class='answer   answerof-165544 ' value='671050'   \/><label for='answer-id-671050' id='answer-label-671050' class=' answer'><span>Object-oriented DBMS<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165544[]' id='answer-id-671051' class='answer   answerof-165544 ' value='671051'   \/><label for='answer-id-671051' id='answer-label-671051' class=' answer'><span>Relational DBMS<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165544[]' id='answer-id-671052' class='answer   answerof-165544 ' value='671052'   \/><label for='answer-id-671052' id='answer-label-671052' class=' answer'><span>Document-oriented DBMS<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-38' style=';'><div id='questionWrap-38'  class='   watupro-question-id-165545'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>38. <\/span>Which are the ONLY ways to project portions of an array?<\/div><input type='hidden' name='question_id[]' id='qID_38' value='165545' \/><input type='hidden' id='answerType165545' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165545[]' id='answer-id-671053' class='answer   answerof-165545 ' value='671053'   \/><label for='answer-id-671053' id='answer-label-671053' class=' answer'><span>$slice<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165545[]' id='answer-id-671054' class='answer   answerof-165545 ' value='671054'   \/><label for='answer-id-671054' id='answer-label-671054' class=' answer'><span>$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165545[]' id='answer-id-671055' class='answer   answerof-165545 ' value='671055'   \/><label for='answer-id-671055' id='answer-label-671055' class=' answer'><span>All of the above<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165545[]' id='answer-id-671056' class='answer   answerof-165545 ' value='671056'   \/><label for='answer-id-671056' id='answer-label-671056' class=' answer'><span>$ elemMatch<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-39' style=';'><div id='questionWrap-39'  class='   watupro-question-id-165546'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>39. <\/span>In a replicated cluster, which of the following node would only be used during an election?<\/div><input type='hidden' name='question_id[]' id='qID_39' value='165546' \/><input type='hidden' id='answerType165546' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165546[]' id='answer-id-671057' class='answer   answerof-165546 ' value='671057'   \/><label for='answer-id-671057' id='answer-label-671057' class=' answer'><span>arbiter<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165546[]' id='answer-id-671058' class='answer   answerof-165546 ' value='671058'   \/><label for='answer-id-671058' id='answer-label-671058' class=' answer'><span>primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165546[]' id='answer-id-671059' class='answer   answerof-165546 ' value='671059'   \/><label for='answer-id-671059' id='answer-label-671059' class=' answer'><span>hidden<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165546[]' id='answer-id-671060' class='answer   answerof-165546 ' value='671060'   \/><label for='answer-id-671060' id='answer-label-671060' class=' answer'><span>secondary<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-40' style=';'><div id='questionWrap-40'  class='   watupro-question-id-165547'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>40. <\/span>Which of the following node is used during election in a replication cluster?<\/div><input type='hidden' name='question_id[]' id='qID_40' value='165547' \/><input type='hidden' id='answerType165547' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165547[]' id='answer-id-671061' class='answer   answerof-165547 ' value='671061'   \/><label for='answer-id-671061' id='answer-label-671061' class=' answer'><span>primary<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165547[]' id='answer-id-671062' class='answer   answerof-165547 ' value='671062'   \/><label for='answer-id-671062' id='answer-label-671062' class=' answer'><span>arbiter<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165547[]' id='answer-id-671063' class='answer   answerof-165547 ' value='671063'   \/><label for='answer-id-671063' id='answer-label-671063' class=' answer'><span>hidden<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-165547[]' id='answer-id-671064' class='answer   answerof-165547 ' value='671064'   \/><label for='answer-id-671064' id='answer-label-671064' class=' answer'><span>secondary<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-41'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.dumpsbase.com\/freedumps\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\" \/>&nbsp;Loading...\t<\/div>\n<\/div>\n\n<br \/>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons5114\" >\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; Previous\" onclick=\"WatuPRO.nextQuestion(event, 'previous');\"\/><\/div>\t\t  \t\t  \t\t   \n\t\t   \t  \t\t<div><input type=\"button\" name=\"action\" class=\"watupro-submit-button\" onclick=\"WatuPRO.submitResult(event)\" id=\"action-button\" value=\"View Results\"  \/>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\n\t<input type=\"hidden\" name=\"quiz_id\" value=\"5114\" id=\"watuPROExamID\"\/>\n\t<input type=\"hidden\" name=\"start_time\" id=\"startTime\" value=\"2026-05-25 22:58:08\" \/>\n\t<input type=\"hidden\" name=\"start_timestamp\" id=\"startTimeStamp\" value=\"1779749888\" \/>\n\t<input type=\"hidden\" name=\"question_ids\" value=\"\" \/>\n\t<input type=\"hidden\" name=\"watupro_questions\" value=\"165508:670900,670901,670902 | 165509:670903,670904,670905,670906 | 165510:670907,670908,670909,670910 | 165511:670911 | 165512:670912,670913,670914,670915 | 165513:670916,670917,670918,670919 | 165514:670920,670921,670922,670923 | 165515:670924,670925,670926,670927 | 165516:670928,670929,670930,670931 | 165517:670932,670933,670934,670935 | 165518:670936,670937,670938,670939 | 165519:670940,670941,670942 | 165520:670943,670944,670945,670946 | 165521:670947,670948,670949,670950 | 165522:670951,670952,670953,670954 | 165523:670955,670956,670957,670958,670959 | 165524:670960,670961,670962,670963 | 165525:670964,670965,670966,670967 | 165526:670968,670969,670970,670971,670972,670973,670974,670975,670976,670977 | 165527:670978,670979,670980,670981 | 165528:670982,670983,670984,670985 | 165529:670986,670987,670988,670989 | 165530:670990,670991,670992,670993 | 165531:670994,670995,670996,670997 | 165532:670998,670999,671000,671001 | 165533:671002,671003,671004,671005 | 165534:671006,671007,671008,671009 | 165535:671010,671011,671012,671013,671014 | 165536:671015,671016,671017 | 165537:671018,671019,671020,671021,671022 | 165538:671023,671024,671025,671026,671027 | 165539:671028,671029,671030,671031 | 165540:671032,671033,671034,671035 | 165541:671036,671037,671038,671039,671040 | 165542:671041,671042,671043,671044 | 165543:671045,671046,671047,671048 | 165544:671049,671050,671051,671052 | 165545:671053,671054,671055,671056 | 165546:671057,671058,671059,671060 | 165547:671061,671062,671063,671064\" \/>\n\t<input type=\"hidden\" name=\"no_ajax\" value=\"0\">\t\t\t<\/form>\n\t<p>&nbsp;<\/p>\n<\/div>\n\n<script type=\"text\/javascript\">\n\/\/jQuery(document).ready(function(){\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \t\nvar question_ids = \"165508,165509,165510,165511,165512,165513,165514,165515,165516,165517,165518,165519,165520,165521,165522,165523,165524,165525,165526,165527,165528,165529,165530,165531,165532,165533,165534,165535,165536,165537,165538,165539,165540,165541,165542,165543,165544,165545,165546,165547\";\nWatuPROSettings[5114] = {};\nWatuPRO.qArr = question_ids.split(',');\nWatuPRO.exam_id = 5114;\t    \nWatuPRO.post_id = 18402;\nWatuPRO.store_progress = 0;\nWatuPRO.curCatPage = 1;\nWatuPRO.requiredIDs=\"0\".split(\",\");\nWatuPRO.hAppID = \"0.72057600 1779749888\";\nvar url = \"https:\/\/www.dumpsbase.com\/freedumps\/wp-content\/plugins\/watupro\/show_exam.php\";\nWatuPRO.examMode = 1;\nWatuPRO.siteURL=\"https:\/\/www.dumpsbase.com\/freedumps\/wp-admin\/admin-ajax.php\";\nWatuPRO.emailIsNotRequired = 0;\nWatuPROIntel.init(5114);\nWatuPRO.inCategoryPages=1;});    \t \n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>C100DBA MongoDB Certified DBA Associate Exam is a great exam, which is for administrators with knowledge of the concepts and mechanics of MongoDB. We recommend this certification for operations professionals who know the fundamentals and have some professional experience administering MongoDB. Based on the skills and topics, we have collected new exam questions and answers [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11360,11361],"tags":[11354,11355,11356,11357,11358,11359],"class_list":["post-18402","post","type-post","status-publish","format-standard","hentry","category-mongodb","category-mongodb-certified-dba-associate","tag-c100dba","tag-c100dba-dumps","tag-c100dba-dumps-questions","tag-c100dba-exam-dumps","tag-c100dba-exam-questions","tag-c100dba-free-dumps"],"_links":{"self":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts\/18402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/comments?post=18402"}],"version-history":[{"count":2,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts\/18402\/revisions"}],"predecessor-version":[{"id":18413,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts\/18402\/revisions\/18413"}],"wp:attachment":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/media?parent=18402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/categories?post=18402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/tags?post=18402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}