Free Access Huawei.H12-891_V1.0.v2022-10-03.q184 Practice Test (Page 31)

Question 146

Is the following description of the OSPFv3 message correct?

A.The LSR message contains the complete LSA header information for requesting an update to the LSA

B.Hello messages and the Option field for DD messages extends to 24-bit

C.The LSACK message contains LSA header information to confirm the receipt of LSU packets

D.The interface ID of the sending interface must be included in the A Hello packet

Question 147

If the PIM-SM protocol is running in a multicast network , you need to configure RP, and the configuration equation of RP is divided into dynamic RP and static RP. The following configuration description of the RP is correct (radio).

A.When you configure Dynamic RP , you need to configure BSR as a backup of the RP.

B.When you configure a static RP , you need to configure the BSR to advertise the RP information.

C.When you configure Dynamic RP, you do not need to configure BSR.

D.When configuring a static RP, you need to specify the information for the RP on all PIM routers.

Question 148

BGP authentication can prevent illegal routers from establishing neighbors with BGP routers, BGP authentication can be divided into MD5 authentication and Keychain authentication, please ask which BGP messages will be carried below BGPKeychain authentication information?( Multiple select).

A.Keeplive

B.Update

C.Notification

D.Open

Question 149

What is wrong with the following statement about digital certificates?

A.Authentication fails when the peer certificate is received within the validity period, but the device itself is in the wrong time if it is not within the validity period of the certificate.

B.Even if two PRI entities are not in the same CA system, authentication can be completed as long as both parties can recognize each other's CA.

C.Digital certificates contain public key information.

D.Digital signatures guarantee the integrity of digital certificates.

Question 150

Regarding the BGP ring protection mechanism, the following description is correct?

A.A AS_PATH attribute is used between autonomous systems to prevent ring cats.

B.You can use the AS_CONFED_SET attribute to prevent loops within a consortium

C.Routes learned from IBGP are not advertised to IBGP neighbors and are used to prevent routing loops inside the AS

D.The Cluster List property is used for reflector cluster inner ring defense, and the router finds that the Cluster List of route entries contains its own Client lD The route is rejected

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Question 146

Question 147

Question 148

Question 149

Question 150

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