Free Access Huawei.H12-821_V1.0-ENU.v2024-06-19.q121 Practice Test (Page 17)

Question 76

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

A.BGP runs on the basis of UDP sessions, and the port number adopted is 179.

B.OSPF runs on the basis of IP protocol, and the protocol number adopted is 90.

C.BGP neighbor relationship is established on the basis of TCP session, and the port number adopted is 179.

D.ISIS runs on the basis of the IF protocol, and the protocol number adopted is 89.

Question 77

Which of the following attributes may not be included in the Update message of a BGP route?
(Multiple choice)

A.MED

B.AS_Path

C.0rigin

D.Local_Preference

Question 78

Part of the configuration of a router is shown in the figure, so which of the following descriptions about this part of the configuration is correct?
[HUAWEI] ip ip-prefix plpermit 10.0.192.0 8 greater-equal 17 less-equal 18

A.In the 10.0.192.0/8 network segment, the route with a mask length of 18 will match the prefix list, and the matching rule is allowed

B.In the 10.0.192.0/8 network segment, the route with a mask length of 19 will match the prefix list, and the matching rule is allowed

C.In the 10.0.192.0/8 network segment, the route with a mask length of 21 will match the prefix list, and the matching rule is allowed

D.In the 10.0.192.0/8 network segment, the route with a mask length of 20 will match the prefix list, and the matching rule is allowed

Question 79

As shown in the figure, four routers in the same LAN are running lS-IS, where R1 is DIS, then R2, R3, R4 establish adjacency relationship with R1 respectively, and no adjacency relationship is established between R2, R3, and R4.

A.True

B.False

Question 80

Which of the following functions is implemented using NDP 135/136 type messages?

A.Address resolution

B.Neighbor Status Tracking

C.Duplicate address detection

D.Router Discovery

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Question 76

Question 77

Question 78

Question 79

Question 80

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