Use Updated Huawei H12-821_V1.0-ENU Dumps: Boost Your Career In 2023

1. About the description about the OSPF calculating the shortest path tree stage, which is the correct?

2. Regarding the description of IGMP Snooping-working mechanism, which is the correct?

3. What is the minimum total length of the address in IS-IS Byte?

4. On the VRP platform, when we introduce OSPF routing to ISIS, if COST is not specified, the cost value will be set to 16 by default.

5. The BGPAS_PATH attribute is an optional transition attribute.

6. As shown in the figure, in a pure IPv6 environment, if you want to realize the communication between PC1 and PC2, which of the following groups of addresses can be configured on PC1 and P2 respectively?

7. The four routers run IS-S and have established adjacency. The area numbers and router levels are marked in the figure. Which of the following statements is correct?

8. A switch runs the RSTP protocol, and its related configuration information is shown in the figure. According to the command configuration, please point out that for Instance 1, the role of the switch is:

9. The following is a partial configuration of a router. The correct description of this configuration is:

10. Which of the following statement about OSPF neighbor information is wrong?

11. As shown in the picture, which of the following statements is correct?

12. As shown in the figure, the forwarding of data traffic before roaming is STA-HAP-upper layer network, the forwarding method is direct forwarding, and the home agent is configured on the AP. After three-layer roaming, what is the direction of data forwarding traffic?

13. The following is the output information of a router. The correct description of this information is:

14. A certain router runs IS-IS, and its output information is shown in the figure. Which of the following statements is wrong?

15. As shown in the figure below, the firewall receives a message from PC1 to PC2 , which of the following statements is correct ?

16. The following is part of the output information of the router Huawei. Regarding the output information, the wrong description is:

17. The four routers run lS-IS and have established adjacency. The area code and the level of the router are marked in the figure. Which of the following statements is correct?

18. The four routers run IS-S and have established an adjacency relationship. The area numbers and router levels are marked in the figure. What is the cost of R4 reaching 10.0.2.2/32?

19. A certain router runs IS-IS, and its output information is shown in the figure. Which of the following statements is correct?

20. In the network shown in the figure, R1 is configured with route penetration, then R1 sends the LSP of Level1-2 to R3, so that R3 can learn the entire network route.

21. As shown in the figure, the four routers in the same LAN run IS-IS, and R1 is DIS. Then R2, R3 R4 respectively establish adjacency relationship with R1, and R2, R3, R4 do not establish adjacency relationship.

22. The following is part of the output information of the router RTB. The wrong description of the output information is:

23. The output information of a router is below, which is correct about this information?

24. The following is the BGP information output by the router. Which of the description of this information is wrong?

25. As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state. At this time, which of the following processes will the network go through to achieve stability?

26. OpenSent

27. As shown in the figure, the stateful inspection firewall will forward the second TCP three-way handshake message in the figure.

28. As shown in the figure, the stateful inspection firewall will forward the packet because the packet conforms to the firewall session state.

29. The router receives two BGP routes containing the following attributes, please select the optimal route according to the BGP route selection rules.

30. Regarding the special area of ​​OSPF, the wrong description is:

31. Which of the following description of OSPF neighbor relationship and adjacency relationship is correct?

32. Which of the following does not belong to IGP?

33. What are the key components of building an IP wide-area bearer network solution together with Huawei NetEngine intelligent routers?

34. Which of the following statements about the address used by AC to establish a CAPWAP tunnel in VRRP hot backup is correct?

35. The default priority of the VRRP device in the backup group is:

36. Which of the following tools is used to filter routing information and set routing attributes for filtered routing information?

37. Regarding the description of the routing tool, which of the following statement is wrong?

38. Will setting the Community attribute of the route through the routing policy affect the route selection?

39. Regarding the description of the summary automatic command and BGP aggregation, the error is:

40. There is a message in the BGP protocol that is periodically sent between BGP neighbors to maintain the neighbor relationship. This message is:

41. Which BGP route will send BGP neighbors without BGP path load sharing enabled?

42. When using authentication in BGP configuration, how should it be configured?

43. In the IS-IS broadcast network, which multicast MAC address does the Level-1 router use as the destination address for sending IIH?

44. Which of the following statements about OSPF protocol packets is wrong?

45. Regarding the ABR in OSPF, which is the wrong description?

46. ​​Regarding the description of LSA header information in OSPF AS -External C LSA, which is wrong?

47. Which function does the switch control plane not include?

48. By default, on a router running IS-IS in a broadcast network, how many seconds does DIS send CSNP messages?

49. When OSPF runs in a broadcast network, it is necessary to elect DR and BDR.

So, in which of the following states, the election of DR and BDR will be carried out?

50. The MAC address of a certain PC is 5489-98FB-65D8. The administrator wants this PC to obtain the specified IP address 192.168.1.11/24 from the DHCP server, so the command configured by the administrator should be:

51. Which of the following is not the main function of NDP?

52. The configuration command for linkage between VRRP and BFD is:

53. Regarding the description of configuring the security level of the security zone of the firewall, the error is:

54. The command to configure the VRRP preemption delay is:

55. Compared with routers and switching machines, what is the unique forwarding module of the firewall?

56. Regarding the description of network address port translation (NAP ) and network address translation only (No-PAT), which of the following statements is correct?

57. When the IPv6 address of the host is configured in the stateless address configuration method, and other parameters except the address are obtained through DHCPv6, how to set the M bit and 0 bit in the RA message?

58. Regarding the description of the Hello message in PIM-SM, the error is:

59. Among the routing policy tools commonly used in BGP, the one that can be used to match a specific AS_path is:

60. Which of the following description about BGP, OSPF, ISIS is correct?