Huawei Huawei Certifications H12-811 Questions & Answers

• Question 721:

  Which extension headers are supported by IPv6 packets?() *

  A. Destination option extension header

  B. Fragment extension header

  C. Hop-by-hop option extension header

  D. VLAN extension header

  Correct Answer: ABC

• Question 722:

  After the two routers are configured with 0SPF, the administrator configures the command on RTA. The following description is correct ()

  A. The neighbor relationship between the two routers will be down

  B. The neighbor relationship between the two routers will not be affected

  C. RTA. Will no longer send OSPF packets

  D. RTA. will continue to receive and analyze and process OSPF packets sent by RTB.

  Correct Answer: BCD

• Question 723:

  As shown in the figure below, assuming that the other configurations of the switch are kept in the default state, which port of the following switch will become the designated port? () (Multiple Choice Questions) A. G0/0/1 of SWB

  

  B. SWC's G0/0/2

  C. SWA's G0/0/3

  D. SWC's G0/0/1

  Correct Answer: AC

• Question 724:

  Through sR (Segment Routing), an explicit path can be easily defineThe nodes in the network only need to maintain the SegmentRouting information to cope with the real-time and rapid development of the business. What are the following characteristics of Segment Routing?

  A. Extending the existing protocol (eg IGP) can make the existing network better and smoothly evolve

  B. SR (Segment Routing) adopts IP forwarding, no extra dimensioning is required-a label forwarding table

  C. Source routing technology is used to provide the ability to quickly exchange text between the network and upper-layer applications

  D. At the same time, it supports the centralized control mode of the controller and the distributed control mode of the transponder, providing a balance between centralized control and distributed control

  Correct Answer: ACD

• Question 725:

  Which of the following refers to network communication? ()*

  A. Use instant messaging software (such as: QQ. WeChat) to chat with friends

  B. Use a computer to access the company's official website

  C. Use computer to watch videos online

  D. Download emails from the company mailbox to your computer

  Correct Answer: ABCD

• Question 726:

  The function of the 0SPF hel1o message is ()

  A. Neighbor discovery

  B. Maintain neighbor relations

  C. Update LSA. Information

  D. Synchronize the LSDB of the router

  Correct Answer: AB

• Question 727:

  Is there any correct statement about the TTL field in the IPv4 header? ()

  A. The range of TTL value is 0-255

  B. Each time a message passes through a three-layer device. TL value minus 1

  C. TTL value length is 8bit

  D. When routing loops occur, the TL value can be used to prevent data packets from being forwarded indefinitely

  Correct Answer: ABCD

• Question 728:

  The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)

  

  A. The DR priority of this routing interface is 10

  B. The cost value of this interface is 1

  C. This router is BDR

  D. The Router ID of the router is 10.0.1.1

  Correct Answer: BCD

• Question 729:

  How to add AP on AC.? ()*

  A. Add online

  B. Automatically discover AP

  C. Import AP offline

  D. Manually confirm APs in the non-certified list

  Correct Answer: ABC

• Question 730:

  OSPF protocol needs to elect DR and BDR in which of the following network types? ()*

  A. Point-to-multipoint

  B. NBMA

  C. Point-to-point type

  D. Broadcast type

  Correct Answer: BD