Huawei Huawei Certifications H12-831 Questions & Answers

• Question 141:

  Which of the following is the least likely cause of a VRRP backup group dual-active failure?

  A. transmissionVRRPLink failure of advertisement message

  B. low priorityVRRPThe backup group will receiveVRRPAnnounce packets are discarded as illegal packets

  C. both endsVRRPbackup groupIDdifferent

  D. Master Equipment1send in seconds1announcement message

  Correct Answer: D

• Question 142:

  If display current-configuration can reach the setting of !JIS-IS, and display saved.

  There is no IS-IS setting in the configuration, so that means?

  A. FlashRunningIS-ISconfiguration, not saved to memory

  B. memory is runningIS-ISConfiguration saved toFlash

  C. nothing enteredIS-ISThe command

  D. memory is runningIS-ISconfiguration, not saved toFlash

  Correct Answer: D

• Question 143:

  If the sticky MA, C function is enabled on an interface, by default, the number of MA, C addresses learned by the interface is as large as few?

  A. 15

  B. 5

  C. 10

  D. 1

  Correct Answer: D

• Question 144:

  If the temperature of the device is found to be too high, it can be concluded that the fan has failed.

  A. True

  B. False

  Correct Answer: B

• Question 145:

  As shown in the figure, in a medium-sized network, BGP generally deploys dual RRs to improve R reliability. When deploying dual RRs, the Cluster IDs of the two RRs are generally set to be the same. The reason for this is

  

  A. Prevent RR from receiving too many routes and causing insufficient memory

  B. prevent suboptimal

  C. prevent loops

  D. Prevent the client from receiving too many routes and causing it to run out of memory

  Correct Answer: A

• Question 146:

  The routing policy tools that can be used by BGP mainly include Filterpolicy and oRoute- policy. Fiterpolicy can only filter routes, Rote - policy can only modify routes.

  A. True

  B. False

  Correct Answer: B

• Question 147:

  A campus deploys OSPF to implement network interworking. The LSDB of R2 is shown in the figure. From this LSDB. it is possible to. What information was obtained?

  

  A. ArealNone inType3 LSA. maybeR2in the area1In the correct directiontype3 LSAfiltered

  B. Area 1forNSSAarea

  C. R2WillType7 LSAThe default route is converted toType5 LSAdefault route for

  D. R2existOSPFThe default route is delivered in the process

  Correct Answer: BD

• Question 148:

  Configuring DHCP Snooping can be used to prevent imitator attacks, so the configuration process needs to include the following. What are the steps?

  A. enable globalDHCP SnoopingFunction

  B. enable globalDHCPFunction

  C. Configure Interface Trust Status

  D. enable interface orVLANofDHCP SnoopingFunction

  Correct Answer: ABCD

• Question 149:

  Regarding the MPLS forwarding process, the description of Ingress node forwarding is correct:

  A. IngressAfter the node receives the data packet, it will first checkILMlooking forTunnel ID

  B. existIPThe obtained label is pressed into the packet, and according to theQoSPolicy processingEXRSimultaneous processingL,,Then the packagedMPLSThe packet is sent to the next hop

  C. according toILMtableTunnel IDfind the correspondingNHLFEentry, willLFIBentry andNHLFEtable entry

  D. CheckNHLFETable entry, you can get outbound interface, next hop, outbound label and label operation type The label operation type isPush

  Correct Answer: BD

• Question 150:

  In intra-domain MPLS VPN networks, data packets will be encapsulated with two layers of MPLS when they enter the public network and are forwarded label, the description of the two-layer label in the following options is wrong

  A. MPLS VPNThe outer label is made byLDPprotocol or statically assigned, the inner label is assigned by the correct end MP-BGPassigned by neighbors

  B. MPLS VPNEThe outer layer label is called the private network label, and the inner layer label is called the public network label

  C. By default, the outer label is singled out before the packet is forwarded to the last hop device

  D. Layer labels are used inPEThe device sends the packet correctly to the correspondingVPNmiddle

  Correct Answer: B