Excellent GB0-192-ENU Dumps for H3CNE-RS+ Certification Exam – Learn all the GB0-192-ENU Exam Questions for Best Preparation

1. The following devices that work at the data link layer of the OSI reference model are______.

2. During the establishment process of the TCP connection as shown in the figure, the Z part in SYN should be filled with ________.

3. The control protocol port used by FTP by default is ______.

4. Use the ______ command to specify the operating system software to be used for next startup.

5. Normally, routers will fragment packets whose length is greater than the interface MTU. In order to detect the line MTU, you can ping the destination address with the ______ parameter.

6. If a port running STP in an Ethernet switch does not receive or forward data, receives and sends BPDUs, and does not perform address learning, then the port should be in the ______ state.

7. The command to configure the bridge priority of the switch SWA to 0 is ______.

8. The IP address 10.0.10.32 and the mask 255.255.255.224 represent a ______.

9. The subnet mask of IP address 132.119.100.200 is 255.255.255.240, then the broadcast address of the subnet where it is located is ______.

10. The well-known port number of the transport layer used by TFTP is ______.

11. In Windows operating system, which command can display ARP entry information?

12. Two empty-configured MSR routers are connected as shown in the figure. By configuring IP addresses, the GE0/0 interfaces of the two routers can communicate with each other. Now add the following configurations to the two routers:

RTA:

[RTA]ospf

[RTA-ospf-1] area 0

[RTA-ospf-1-area-0.0.0.0] network 192.168.1.1 0.0.0.3

[RTA-GigabitEthernet0/0] ospf dr-priority 2

RTB:

[RTB]ospf

[RTB-ospf-1] area 0

[RTB-ospf-1-area-0.0.0.0] network 192.168.1.1 0.0.0.3

[RTB-GigabitEthernet0/0] ospf dr-priority

Then after the OSPF neighbor status is stable, ______.

13. In the network environment as shown in the figure, perform the following NAT configuration on RTA:

[RTA]acl number 2000

[RTA-acl-basic-2000] rule 0 permit source 10.0.0.0 0.0.0.255

[RTA-acl-basic-2000] nat address-group 1 200.76.28.11 200.76.28.11

[RTA]interface Ethernet0/1

[RTA-Ethernet0/1] nat outbound 2000 address-group 1

After configuration, both Client_A and Client_B are accessing the Server, so the NAT table of RTA may be ______ at this time.

14. In the network environment as shown in the figure, two routers are connected back-to-back through serial ports. The rate of the interconnection link must be set to 2Mbps. Which of the following statement below is correct?

15. When configuring ISDN DCC, the customer configured the following dialer-rule on his MSR router:

[MSR] dialer-rule 1 acl 3000. So which of the following statements about this configuration are correct?

16. The hub works on ______ of the OSI reference model.

17. The device that implements network interconnection at the network layer is ______.

18. In the Open Systems Interconnection reference model (OSI), ______ transmits data streams in the form of frames.

19. Which of the following statement about the OSI reference model is correct?

20. The main function of the physical layer of the OSI reference model is ______.

21. Configure a static route on the router. It is known that the destination address is 192.168.1.0, the mask is 20 bits, the outbound interface is GigabitEthernet0/0, and the outbound interface IP address is 10.10.202.1. Which of the following configurations are correct?

22. The IP protocol corresponds to layer ______ of the OSI reference model.

23. In the OSI reference model, the function of the network layer is mainly ______.

24. Data segmentation is done in ______ in the OSI reference model.

25. Providing end-to-end reliable data transmission and flow control is the ______ of the OSI reference model.

26. In the OSI reference model, encryption is a function of ______.

27. TCP belongs to ______ of the OSI reference model.

28. UDP belongs to ______ of the OSI reference model.

29. SPX belongs to ______ of the OSI reference model.

30. DNS works on ______ of the OSI reference model.

31. Use an Ethernet cable to connect the two switches. The MDI type of the interconnection port is configured as across, so the Ethernet cable should be ________.

32. The standard physical medium of 100BASE-TX is ______.

33. 802.11b protocol defines 14 channels in the 2.4GHz frequency band, and adjacent channels overlap in the spectrum. In order to maximize the use of frequency band resources, which of the following sets of channels can be used for wireless coverage?

34. 802.11b protocol defines 14 channels in the 2.4GHz frequency band, and adjacent channels overlap in the spectrum. In order to maximize the use of frequency band resources, which of the following sets of channels can be used for wireless coverage?

35. There are many types of WAN interfaces, which of the following description of WAN interfaces is incorrect?

36. ping is actually an application developed based on ______ protocol.

37. IP address 203.108.2.110 is ______ address.

38. IP address 133.18.2.110 is ______ address.

39. When the source host pings the destination device, if the network is working normally, the destination device will respond with an ICMP______ message to the source host after receiving the message.

40. Which of the following options describes parameters that uniquely determine a TCP connection?

41. TCP protocol distinguishes different connections through ______.

42. During the establishment process of the TCP connection as shown in the figure, the X part in SYN should be filled with ________.

43. During the establishment process of the TCP connection as shown in the figure, the Y part in SYN should be filled with ________.

44. During the teardown process of the TCP connection as shown in the figure, the X part in the ACK should be filled with ______.

45. During the teardown process of the TCP connection as shown in the figure, the Y part in FIN should be filled in with ______.

46. Configure the MSR router that has just left the factory without configuration through the console port. The serial port baud rate of the terminal should be set to _____.

47. Which of the following description of VTY features in H3C equipment is correct?

48. SSH uses the TCP port number ______ by default.

49. If you need to configure the IP address of the Ethernet port on the MSR, you should configure it under ______.

50. Which of the following description of the startup process of the router system is correct?

51. If you want to upgrade the router but do not have a network cable, you can use the configuration cable and use the ______ protocol to upgrade through the Hyper Terminal.

52. On MSR routers , configuration files are files saved in ______ format.

53. If the user-specified configuration file does not exist, the router is initialized with _____.

54. The default data transmission port used by FTP is ______.

55. FTP protocol is a protocol based on ______.

56. TFTP protocol is a protocol based on ______.

57. Use the ______ command on the MSR router to turn off the information center function.

58. On the MSR router, if you want to modify some configurations after logging in to the device with access level, you can use the ______ command to switch to level 3.

59. When viewing the configuration, if there are too many configuration commands to be displayed on one screen, you can press ______ to display the next page after one screen is displayed.

60. On the MSR router, by default, the configuration file is suffixed with ______.

61. Use the ______ command on the MSR series router to display the current path of the file system.

62. In the command line, if the user wants to return to the previous view from the current view, he should use ______.

63. Users can use the ______ command to view historical commands.

64. On the MSR router, type the first few letters of a keyword in the command and press ______ to complete the command.

65. On the MSR router, if a certain file has been set as a startup file, you can use the ______ command to check whether the setting is correct.

66. On the MSR router, if you want to download files from the FTP Server, you should use the ______ command in the FTP command.

67. On the MSR router, once the system time is inaccurate, you can use the ______ command to adjust the system time.

68. On the MSR router, use the ______ command to view the current running version of the device.

69. On the MSR router, each functional module has its corresponding information display command. Generally, to view the running information of each functional module, you need to run the corresponding display commands one by one. In order to collect more information at one time and facilitate daily maintenance or problem location, you can execute the ______ command in any view to display the statistical information about the current operation of each major functional module of the system.

70. During system startup, type ______ according to the prompts, and the system will interrupt booting and enter BootROM mode.

71. On the MSR router, when you use the delete command without parameters to delete files, the deleted files will be saved in ______.

72. On the MSR router, if you want to completely delete a discarded file in the Recycle Bin, you can execute the ______ command.

73. On the MSR router, if you want to view the files in the recycle bin, you can use the ______ command.

74. On the MSR router , the -t parameter of the ping command specifies the timeout time of the ICMPEchoReply message . The value range is 1 ~ 65535, and the unit is milliseconds . Its default value is ______ milliseconds.

75. On the MSR router , the -m parameter of the ping command specifies the time interval for sending ICMPEchoRequest messages . The value range is 1 ~ 65535, in milliseconds . Its default value is ______ milliseconds.

76. There are two hops from the source device to the destination device. Use the tracert command to detect the path. When detecting the first hop, the source device sends a UDP packet with a TTL of 1 to a larger port of the destination device. When the packet reaches the intermediate hop, the TTL will change to 0, so the device sends a message to the source device. Respond to an ICMP______ message.

77. There are two hops from the source device to the destination device. Use the tracert command to detect the path. When detecting the first hop, the source device sends a UDP packet with a TTL of 1 to the intermediate hop; when detecting the second hop, the source device sends a UDP packet with a TTL of 2. The packet reaches the intermediate hop first, and the TTL decreases. is 1. When the packet reaches the destination, the TTL will be decremented to 0. At this time, the destination device will send an ICMP______ message to the source to inform the source device that it has tracked the destination address.

78. On the MSR router, the -tos parameter of the ping command specifies the ToS (Type of Service, service type) field value in the ICMPEchoRequest message. The value range is 0~255, and the default value is ______.

79. After turning on debugging, you can use the ______ command to turn off debugging.

80. When using the ping command on the MSR router, you can use the ______ parameter to set the length of the ICMP message sent.

81. On the MSR router, if you want to specify the source address of the packet sent during the ping operation, you should use the ______ parameter.

82. The MSR router sent 5 packets by default during the last ping. If you want to specify the number of packets to send, you can use the ______ parameter.

83. After turning on the console’s system information monitoring function, use the ______ command to turn on the screen output of debugging information.

84. The Layer 2 Ethernet switch searches for an entry in the MAC address table that matches the destination MAC address of the frame and forwards the frame out of the corresponding interface. If the search fails, the switch will ______.

85. The MAC address table on a layer 2 switch is as shown in the figure. When the switch receives a frame with the destination MAC address 00-13-72-8E-4B-C1 from the E1/0/2 interface, the switch ______ the frame.

86. To configure Trunk on the link between Ethernet switches and allow the transmission of VLAN 10 and VLAN 20 information, ______ must be configured on the switch.

87. If a port of an Ethernet switch running STP does not receive or forward data, receives but does not send BPDUs, and does not perform address learning, then the port should be in the ______ state.

88. If a port running STP in an Ethernet switch receives and forwards data, receives, processes and sends BPDUs, and performs address learning, then the port should be in the ______ state.

89. In the switched network as shown in the figure, all switches have the STP protocol enabled. Based on the information in the figure, which switch will be selected as the root bridge?

90. In the switching network as shown in the figure, all switches have the STP protocol enabled. Based on the information in the figure, which switch will be selected as the root bridge?

91. In the switching network as shown in the figure, all switches have the STP protocol enabled.

Based on the information in the figure, which switch will be selected as the root bridge?

92. In the switched network as shown in the figure, all switches have the STP protocol enabled.

Based on the information in the figure, which switch will be selected as the root bridge?

93. In the switched network as shown in the figure, all switches have the STP protocol enabled. SWA was chosen as the root bridge.

According to the information in the figure, the ______ port should be set to the Blocking state. (select one or more)

94. 802.1x defines a port-based network access control protocol, and only defines the point-to-point connection method between access devices and access ports. The access port can only be a physical port.

95. Both VLAN technology and port isolation technology can achieve Layer 2 isolation of data.

96. A company purchased switches from two manufacturers, A and B, for network engineering implementation. Link aggregation technology needs to be used between switches from two vendors. After consulting the relevant documents, I learned that the switch of manufacturer A does not support the LACP protocol.

In this case, which of the following configuration methods are reasonable?

97. According to user requirements, the administrator needs to configure the switch SWA port Ethernet1/0/1 as a Trunk port. Which of the following commands is the correct configuration command?

98. The port Ethernet1/0/1 of the switch SWA was originally an Access port type, and now it needs to be configured as a Hybrid port type. Which of the following commands is the correct configuration command?

99. The switch SWA port Gigabi Ethernet1/0/24 has been configured as a Trunk port type.

If you want to allow this port to allow VLAN2 and VLAN3 to pass, which of the following commands needs to be used?

100. If you want to check which VLANs currently exist on the switch , which of the following commands should be used ?