1. Which of the following does not include the advantages of Wi-Fi6 over Wi-Fi5?

2. What is the first operation to be performed after the FIT AP obtains the IP address of the AC?

3. Which of the following protocols is not a file transfer protocol?

4. What is the main function of the DNS protocol?

5. Which of the following message types does DHCP contain? (Multiple choice)

6. What is the number range of the advanced ACL?

7. What is the number range of Layer 2 ACL?

8. Before the STA associates with the AP, it needs to exchange some messages to obtain the SSID. Which of the following are these messages? (Multiple choice)

9. The network administrator configures the Huawei router RTA as shown in the figure. If a user needs to be authenticated in the authentication domain "huawei", which of the following descriptions is correct?
[RTA] aaa
[RTA-aaa] domain huawei
[RTA-aaa-domain huawei] authentication-scheme au1
[RTA-aaa domain-huawei] authentication-scheme au2

10. In the configuration BPDU sent by the switch, which bridge ID cannot appear?

11. Using the commands "vlan batch 10 20 " and "valn batch 10 to 20 ", what is the number of VLANs that can be created?

12. Which of the following statements about Hybrid ports is correct?

13. Which of the following statements about the election of active ports in link aggregation LACP mode is correct?

14. The bridge ID of the STP protocol in the switching network is as follows. Which of the following bridge ID switches will become the root bridge?

15. If the Length/type=0x8100 of an Ethernet data frame, which of the following statements is correct?

16. Based on what concept is segment routing SR (segment routing) a protocol designed to forward data packets on the network?

17. What are the stable states of the OSPF protocol neighbor relationship? (Multiple choice)

18. In PPP, when the two ends of the communication detect the activation of the physical link, they will transition from the link unavailable stage to the link establishment stage. In this stage, the link parameters are mainly negotiated through the () protocol

19. Which of the following OSPF protocol packets can ensure the reliability of LSA update?

20. On the VRP operating platform, which of the following commands can only view static routes?

21. Which of the following statements about static routing is wrong?

22. A network engineer prompts the following information when entering the command line:
Error: Unrecognized command found at '^' position. Which statement is correct about this prompt message?

23. On the command line interface of the Huawei AR router, the save command is used to save the current system time.

24. The tracert diagnostic tool in Huawei routers is used to trace the forwarding path of data.

25. When using the ping command on the VRP platform, if it is necessary to specify an IP address as the source address of the echo request message, which of the following parameters should be used?

26. Which of the following protocol types does the OSPF protocol support? (Multiple choice)

27. Which frequencies does the IEEE 802.11n standard support? (Multiple choice)

28. In which of the following network types does OSPF need to elect DR and BDR? (Multiple choice)

29. Which statement about the transport layer protocol is correct? (Multiple choice)

30. A router running the OSPF protocol can only reach the FULL state after completing LSDB synchronization.

31. All router interfaces belong to the same broadcast domain.

32. Must all interfaces of routers running OSPF belong to the same area.

33. Can dynamic routing protocols automatically adapt to changes in network topology.