HCIA-Datacom V1.0 Exam Questions & Answers – Updated H12-811_V1.0-ENU Dumps V9.02

1. When the host accesses the web server of the server, the value of the network layer protocol field is 6.

2. 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?

3. As shown in the figure, there are three data packets captured by the administrator in the network. Which of the following statements is wrong?

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

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

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

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

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

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

10. In the network shown in the figure below, what commands can be entered on the router to enable host A to ping host B? (Multiple choice)

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

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

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

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

15. 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?

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

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

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

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

20. As shown in the figure below, host A and host B cannot communicate.

21. As shown in the figure, when the switch needs to forward the frame whose destination mac address is 5489-98ec-f011, which of the following descriptions is correct?

22. According to the command output shown in the figure, which of the following descriptions is correct? (Multiple choice)

23. According to the command shown in the figure, which of the following descriptions is correct? (Multiple choice)

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

25. 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?

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

27. The MAC address of the existing switch is shown in the figure, which of the following statements is correct?

28. As shown in the figure below, all hosts can communicate normally. Which of the following statements is correct? (Multiple choice)

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

30. The function of telnet.read_very_eager in Telnetlib is to read data non-blockingly. Usually needs to be used together with the time module.

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

32. The IPv6 address 2001:ABEF:224E:FFE2:BCCO:CDOO:DDBE:8D58 cannot be abbreviated.

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

34. The Layer 2 switch belongs to the data link layer device, which can identify the mac address information in the data frame, forward the data according to the mac address, and record these mac addresses and corresponding port information in its own mac address table.

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

36. If there is an inclusion relationship in the configured ACL rules, it should be noted that the rule numbers of the strict conditions need to be sorted first, and the rule numbers of the loose conditions need to be sorted last, so as to prevent the packet from stopping to continue matching due to hitting the rules of the loose conditions, thereby Rules that make it impossible to hit strict conditions.

37. 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

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

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

40. If the packet matches the ACL and the result is "deny", the packet will be discarded eventually.

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

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

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

44. Only the security policy of WPA2-PSK supports the use of TKIP for data encryption.

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

46. The port numbers used in the control tunnel and data tunnel transmission of CAPWAP are the same.

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

48. 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)

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

50. 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