Red Hat EX280 Updated Exam Dumps (V9.02) for the Red Hat Certified OpenShift Administrator Exam Preparation

Whether you are a seasoned system administrator, DevOps engineer, or just starting your journey in container technologies, achieving the Red Hat Certified OpenShift Administrator (EX280) certification can help you stand out in a competitive job market. DumpsBase updated the EX280 dumps to V9.02, offering you 33 practice questions and answers. With these expertly crafted Red Hat EX280 Q&As from DumpsBase, preparing for and passing the EX280 exam has never been more attainable. You can download a PDF file and practice testing software to practice all these exam questions that closely reflect the actual exam pattern and syllabus. With one year of free updates after purchase, you can be confident that your materials stay current even if Red Hat makes minor changes to the OpenShift platform or exam objectives. Explore DumpsBase’s Red Hat EX280 exam dumps (V9.02) today and join the ranks of certified OpenShift administrators who are leading digital transformation initiatives worldwide.

Below are our EX280 free dumps of V9.02, helping you test the quality first:

1. SIMULATION

Scale an application automatically

Automatically scale the hydra application deployment configuration in the lerna project with the following requirements:

Minimum number of replicas: 6 Maximum number of replicas: 9

Target average CPU utilization: 60 percent Container CPU resource request: 25m Container CPU

resource limit: 100m

Solution:
$ oc project lerna
$ oc get pods
$ oc get all | grep deployment
$ oc autoscale deployment.apps/hydra --max=9 --min=6 --cpu-percent=60 $ oc get hpa
$ oc set resources deployment.apps/hydra --limits=cpu=100m -- requests=cpu=25m $ oc describe deployment.apps/hydra | grep Limits -A3

2. SIMULATION

Configure a secure route

Configure the oxcart application in the area51 project with the following requirements:

The application uses a route called oxcart

The application uses a CA signed certificate with the following subject fields:

/C=US/ST=NV/L=Hiko/O=CIA/OU=USAF/CN=classified.apps.domainxx.example.com The application is reachable only at the following address: https://classified.apps.domainxx.example.com

The application produces output

A utility script called newcert has been provided to create the CA signed certificate. You may enter the certificate parameters manually or pass the subject as a parameter.

Your certificate signing request will be uploaded to the CA where it will immediately be signed and then downloaded to your current directory.

Solution:
$ oc project area51
$ oc get pods
$ oc get all | grep deployment
$ oc get route
$ oc delete route oxcart
$ openssl genrsa -out ex280.key 2048
$ openssl req -new -key ex280.key -out ex280.csr -subj "/C=US/ST=NV/L=Hiko/O=CIA/OU=USAF/CN=classified.apps.domainxx.example.com"
$ openssl x509 -req -in ex280.csr -signkey ex280.key -out ex280.crt
$ oc create route edge oxcart --service oxcart --key ex280.key --cert ex280.crt --hostname classified.apps.domainxx.example.com
$ oc get route
$ oc get svc

3. SIMULATION

Configure project permissions

Configure your OpenShift cluster to meet the following requirements: The following projects exist:

apollo manhattan gemini bluebook titan

The user account armstrong is an administrator for project apollo and project gemini The user account wozniak can view project titan but not administer or delete it

Solution:
$ oc new-project apollo
$ oc new-project manhattan
$ oc new-project gemini
$ oc new-project bluebook
$ oc new-project titan
$ oc adm policy add-role-to-user admin armstrong -n apollo
$ oc adm policy add-role-to-user admin armstrong -n gemini
$ oc adm policy add-role-to-user view wozniak -n titan

4. SIMULATION

Deploy an application

Deploy the application called rocky in the bullwinkle project so that the following conditions are true:

The application is reachable at the following address: http://rocky.apps.domainXX.example.com

The application produces output

Solution:
$ oc project bullwinkle
$ oc get pods
$ oc get all | grep deploy
$ oc get nodes
$ oc describe nodes | grep -i taint
$ oc adm taint nodes worker0 key1=value1:NoSchedule-
$ oc adm taint nodes worker1 key1=value1:NoSchedule-
$ oc describe nodes | grep -i taint
$ oc get route
$ oc delete route rocky
$ oc expose svc rocky --hostname rocky.apps.domainxx.example.com $ oc get route

5. SIMULATION

Configure an identity provider

Configure your OpenShift cluster to use an HTPasswd identity provider with the following requirements:

The name of the identity provider is: ex280-htpasswd The name of the secret is: ex280-idp-secret

The user account armstrong=indionce The user account collins=veraster The user account aldrin=roonkere The user account jobs=sestiver

The user account wozniak=glegunge

6. SIMULATION

Configure cluster permissions

Configure your OpenShift cluster to meet the following requirements: The user account jobs can perform cluster administration tasks The user account wozniak can create projects

The user account wozniak cannot perform cluster administration tasks The user account armstrong cannot create projects

The user account kubeadmin is not present

Solution:
$ oc adm policy add-cluster-role-to-user cluster-admin jobs
$ oc adm policy remove-cluster-role-from-group self-provisioner
system:authenticated:oauth
$ oc adm policy add-cluster-role-to-user self-provisioner wozniak
$ oc delete secret kubeadmin -n kube-system

7. SIMULATION

Configure groups

Configure your OpenShift cluster to meet the following requirements: The user account armstrong is a member of the commander group The user account collins is a member of the pilot group

The user account aldrin is a member of the pilot group

Members of the commander group have edit permission in the apollo project Members of the pilot group have view permission in the apollo project

Solution:
$ oc adm groups new commander
$ oc adm groups new pilot
$ oc adm groups add-users commander armstrong
$ oc adm groups add-users pilot collins
$ oc adm groups add-users pilot aldrin
$ oc adm policy add-role-to-group edit commander -n apollo $ oc adm policy add-role-to-group view pilot -n apollo

8. SIMULATION

Scale an application manually

Manually scale the minion application in the gru project to a total of 5 replicas.

Solution:
$ oc project gru
$ oc get pods
$ oc get all | grep deployment
$ oc scale --replicas=5 deployment.apps/minion
$ oc get pods

9. SIMULATION

Configure quotas

Configure your OpenShift cluster to use quotas in the manhattan project with the following requirements:

The name of the ResourceQuota resource is: ex280-quota

The amount of memory consumed across all containers may not exceed 1Gi

The total amount of CPU usage consumed across all containers may not exceed 2 full cores

The maximum number of replication controllers does not exceed 3 The maximum number of pods does not exceed 3

The maximum number of services does not exceed 6

Solution:
$ oc project manhattan
$ oc create quota ex280-quota --
hard=memory=1Gi,cpu=2,pods=3,services=6,replicationcontrollers=3
$ oc get resourcequota

10. SIMULATION

Configure limits

Configure your OpenShift cluster to use limits in the bluebook project with the following requirements:

The name of the LimitRange resource is: ex280-limits

The amount of memory consumed by a single pod is between 5Mi and 300Mi

The amount of memory consumed by a single container is between 5Mi and 300Mi with a default request value of 100Mi

The amount of CPU consumed by a single pod is between 10m and 500m

The amount of CPU consumed by a single container is between 10m and 500m with a default request value of 100m

Solution:
$ vim limit.yaml
# Edit the yaml file like below mentioned
apiVersion: "v1" kind: "LimitRange" metadata:
name: "resource-limits" spec:
limits:
- type: "Pod"
max:
cpu: "500m" memory: "300Mi"
min:
cpu: "10m" memory: "5Mi"
- type: "Container" max:
cpu: "500m" memory: "300Mi"
min:
cpu: "10m" memory: "5Mi"
defaultRequest: cpu: "100m" memory: "100Mi"
$ oc create -f limit.yaml --save-config -n bluebook
$ oc describe limitranges -n bluebook

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