1. A network administrator has captured a data frame in the network with the destination MAC address of 01-00-5E-A0-B1-C3.

The correct statement about this MAC address is ().

2. Which of the following is not the working principle of CSMA/CD?

3. The IPv4 address of the host is 200.200.200.201/30.

Which host with the following IPv4 address and its communication do not need to be forwarded by the router?

4. If the Ethernet data frame is Length/Type=0x0806, which of the following statement is correct? (Multiple Choice)

5. When a router enabled with Proxy ARP function receives an ARP request packet and finds that the requested IP address is not its own, what actions are performed? (Multiple Choice)

6. Which of the following storage media are commonly used by Huawei routers? (Multiple Choice)

7. The VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level.

Which level can run various business configuration commands but cannot operate the file system?

8. On the VRP interface, you cannot use the command delete or unreserved vrpcfg.zip to delete files. You must empty them in the recycle bin to delete files completely.

9. The switch MAC address table is existing as follows, which of the following statements is correct?

10. As shown in the figure below, the switch starts the STP protocol.

When the network is stable, which of the following statements are correct? (Multiple Choice)

11. The STP protocol is enabled on both switches shown in the figure below.

An engineer made the following conclusions on this network.

Do you think what is the correct conclusion? (Multiple Choice)

12. Compared to STP protocol, which kind of port role is added in RSTP protocol? (Multiple Choice)

13. As shown in the figure, the two switches use the default parameters to run STP. On Switch A, the configuration command STP root primary is used. On the switch B, the configuration command STP priority 0 is used.

Which of the following ports will be blocked?

14. Which of the following parameters does not the configuration BPDU packet of the STP protocol?

15. By default, how many seconds are the Forward Delay of STP protocol?

16. Which of the following parameters are used in the switched network that runs the STP protocol when performing spanning tree calculations? (Multiple Choice)

17. In the STP protocol, assume that all switches are configured with the same priority. The MAC address of switch 1 is 00-e0-fc-00-00-40, and the MAC address of switch 2 is 00-e0-fc-00-00-10, the MAC address of switch 3 is 00-e0-fc-00-00-20, and the MAC address of switch 4 is 00-e0-fc-00-00-80, then the root switch should be ().

18. The network shown in the figure below, the MAC address of the switch has been marked. Enter the command stp root secondary on the SWD switch.

Which of the following switches will become the root bridge of this network?

19. Both the two switches shown in the following figure have STP enabled.

Which port will eventually be in the Blocking state?

20. The network as shown in the following figure, after the OSPF protocol is stable, what is the neighbor status of Router A and Router B?

21. In the network shown below, which of the following commands can be entered in the router to enable Host A to ping through Host B? (Multiple Choice)

22. The network as shown in the following figure, the following configurations exist on the Router A.

ip route-static 10.0.2.2 255.255.255.25510.0.12.2

ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70

Which of the following statements are correct? (Multiple Choice)

23. Which of the following OSPF versions are suitable for IPv6?

24. T he network as shown in the following figure, which of the following commands can enable RouterA to forward a packet with the destination IP address of 10.0.0.3? (Multiple Choice)

25. Which of the following about the statement of static routing are incorrect?

26. Which of the following commands can be used to check whether OSPF has correctly established neighbor relationships?

27. For multiple paths to the same destination network, the router needs to select by comparing the size of the Cost value. If the value of the Cost is the same, then select according to the size of the Preference value.

28. As shown in the figure below, Host A and Host B cannot communicate.

29. For multiple paths to the same destination network, the router needs to select by comparing the size of the Preference value. If the Preference is the same, then select according to the size of the Cost value.

30. The routing table consists of multiple elements.

What is wrong with the following statement?

31. The correct description of the following is (). (Multiple Choice)

32. Ip route-static 10.0.2.2 255.255.255.25510.0.12.2 preference 20, about this command, which is the correct statement? (Multiple Choice)

33. The network as shown in the following figure, when the network administrator performs traffic planning, it is expected that the packets sent by Host A to Host B will be connected to G0/0/3 interface between the routers. The packets sent by Host B to Host A go pass the G0/0/4 interface between routers.

Which of the following commands can implement this requirement? (Multiple Choice)

34. If the IP address requested by the DHCP client is already occupied, which packet will the DHCP server use as the response?

35. The DHCP REQUEST message must be sent in broadcast form.

36. Which DHCP message does the DHCP client send when it wants to leave the network?

37. Huawei devices can be managed using the Telnet protocol.

Which of the following statements is correct about this management function?

38. As shown, the topology and the configuration on the switch interconnect port, you can determine that the data frame labeled as VLAN 10 can be forwarded normally between the two switches.

39. The output information of a port of the switch is as follows.

What is wrong with the following statement?

40. Which information of the data frame is judged by the VLANIF interface to perform Layer 2 forwarding or Layer 3 forwarding?

41. Packets forwarded between two routers must not carry VLAN TAG.

42. The Priority field in the VLAN tag identifies the priority of the data frame.

What is the priority range?

43. What is the characteristic of port-based VLAN partition?

44. The Protocol field in the PPP frame format is 0xC223, indicating that the protocol is:

45. The configuration information of a router is as follows.

Which combination of username and password used by the peer router can enable PPP channel associated to complete authentication?

46. Which method does the PPPoE client use to send PADI packets to the Server?

47. The network shown in the following figure requires the network where the host is located to access the Internet through Easy IP.

Which of the following ACLs should be used on the G0/0/3 interface of the router?

48. The configuration information of a router is as follows.

Which of the following statement is correct? (Multiple Choice)

49. The IKE protocol is used to establish an SA for IPsec auto-negotiation, which can support identity authentication when the address of the initiator of the negotiation changes dynamically.

50. By default, in the SNMP protocol, which port number is used by the proxy process to send an alarm message to the NMS?

51. If the result of the packet matching ACL is "reject", the packet is finally discarded.

52. In terms of security, IPsec tunnel mode is superior to IPsec transport mode.

53. What is the status of the OSPFv3 adjacency relationship after it is established?

54. The network as shown in the following figure, when OSPFv3 is enabled on all interfaces, Router A and Router B cannot establish adjacencies.

55. Which of the following fields are fields that exist in both IPv6 and IPv4 headers? (Multiple Choice)

56. What is the destination address of the DHCPv6 request packet?

57. By default, how many seconds is the period of OSPFv3 HELLO packet sending on the Ethernet link?

58. Which of the following fields does the MPLS header include? (Multiple Choice)

59. SR (SegmentRouting) defines a destination address prefix/node and adjacency in the network as segments, and assigns SIDs (Segment IDs) to the segments. By performing an unordered list of Adjacency SIDs and Prefix/Node SIDs (destination address prefixes/node segments), a forwarding path is obtained.

60. The ARP protocol can resolve the MAC address of the target device according to the destination IP address, thereby, to map the link layer address and the IP address.

61. The Tracert diagnostic tool records the () of each ICMP TTL timeout message so that the user can be provided with the IP address of the packet when it arrives at the destination.

62. VLSM can expand any IP network segment, including Class D addresses.

63. Which fields in the IPv4 header are related to sharding? (Multiple Choice)

64. The pwd and dir commands in the VRP operating platform can view the file information in the current directory.

65. The output information of a router is as follows.

Which of the following statement is correct? (Multiple Choice)

66. For a switch running STP, the port can be directly converted to the Disabled state in any state.

67. Which of the following MAC addresses will not age? (Multiple Choice)

68. By default, the bridge priority of a switch is 32768.

69. Which port of the following switches is blocked as shown in the following figure?

70. As shown in the following figure, all hosts can communicate normally.

What is the correct relationship between the SWBMAC address and the port?

71. A switch running STP protocol will send TCN BPDUs only when a port on the switch fails.

72. How many bits of the Port ID total length in the spanning tree protocol?

73. As shown in the figure, the correct description about this network topology is ().

74. Which of the following statements about the Backup port in the RSTP protocol is correct?

75. A network consisting of switches does not have STP enabled. A Layer 2 loop must occur.

76. When a port running the standard STP protocol receives a suboptimal BPDU, it immediately sends its own configuration BPDU from this port.

77. As shown in the following figure, all routers run OSPF protocol. The top of the link is the size of the Cost value.

What is the path of the RA to the network 10.0.0.8/8?

78. Which of the following statements about OSPF neighbor status is correct? (Multiple Choice)

79. On the network shown in the following figure, the administrator wants Router A to use static routes to send packets to Router B priority through G0/0/1.

Which command can be used to meet this requirement?

80. ip route-static 10.0.12.0 255.255.255.0 192.168.1.1

The correct description about this command is ().

81. Network structure and OSPF partition as shown in the figure, except for R1, routers R2, R3 and R4 are ABR routers of OSPF.

82. As shown in the configuration, the administrator has configured OSPF on R1, but R1 cannot learn the routes of other routers.

[R1] ospf

[R1-ospf-1] area 1

[R1-ospf-1-area-0.0.0.1] network 10.0.12.0 0.0.0.255

The possible reason is (). (Multiple Choice)

83. Which of the following data packets is the OSPF protocol encapsulated in?

84. Whichi of the following about the default route is correct? (Multiple Choice)

85. When configuring a static route on a broadcast interface, you can configure a static route by specifying the next hop address or outbound interface.

86. Which of the following attributes cannot be used as a parameter to measure Cost?

87. As shown in the following figure, Router A and Router B establish an OSPF neighbor relationship. The OSPF process ID of Router A is 1 and the area ID is 0.

Which of the following methods can enable Router B to obtain the route of the network segment where Host A is located? (Multiple Choice)

88. Which of the following fields does not contain in HELLO packets of OSPF protocol?

89. What are the roles of OSPF DR and BDR? (Multiple Choice)

90. Which of the following are routing protocols? (Multiple Choice)

91. A company network administrator wants to be able to remotely manage branch network devices.

Which of the following protocols will be used?

92. Which of the following message types does DHCP contain? (Multiple Choice)

93. Telnet is based on the TCP protocol.

94. If the administrator performs the configuration below on the Router, the the host connected to the G1/0/0 interface of the router can obtain what kind of the IP address through DHCP?

95. What should do when the Access port sends a data frame?

96. If the configuration information of a port on a switch is as follows, when this port sent the data frames of which VLAN, the VLAN TAG is stripped?

97. The configuration information of a port on the switch is as follows, when the port sends the data frame of which VLAN TAG is carried, the VLAN TAG is stripped?

98. When a port of the switch sends a data frame carrying the same VLAN TAG and PVID, it must strip the VLAN TAG forwarding.

99. As shown in the following figure, Router A uses manual link aggregation and adds G0/0/1 and G0/0/2 ports to aggregation group 1.

The incorrct statement about the status of Router A aggregation port 1 is:

100. In the network shown in the figure, the correct description of the following is: