Huawei Huawei Certifications H12-831 Questions & Answers

• Question 221:

  The routing policy tools that can be used by BGP mainly include Filter-policy and Route- policy. Fiter-policy can only filter routes, and Route-policy can only modify routes.

  A. Yes

  B. wrong

  Correct Answer: B

• Question 222:

  IS-/S supports multi-instance and multi-process, that is, one IS-S router. Multiple VPN instances can be configured with multiple IS-IS process associated. Are the following descriptions of IS-JS multi-instance and multi- process correct?

  A. indivualIS-ISprocess can only be used with1indivualVPNinstance association

  B. if oneIS-ISThe router creates multipleIS-ISProcess, each process does not affect each other, independent of each other

  C. 1indivualIS-ISprocess can be associated with multiple differentVPNinstance association

  D. 1indivualVPNInstances can be associated with multiple differentIS-ISprocess association

  Correct Answer: ABD

• Question 223:

  Regarding BGP/MPLS IPVPN routing interaction, which of the following descriptions is wrong?

  A. ExportPEable to passBGP,IGPor static routing to the remoteCEsendIPv4routing

  B. ExportPEupon receiving the entrancePEpostedVPNv4After routing, according to the route carriedRTproperty, yes VPNv4route to filter

  C. PEandCEthe interaction isIPv4routing information

  D. EntrancePEwill be fromCEreceivedIPv4route becomesVPNv4routing, and vary according toVPNsave the instance

  Correct Answer: A

• Question 224:

  According to this picture, the door can be judged?

  

  A. R4belong only toLevel-2

  B. system-IDforee8c.a0c2.baf2device whose type isLevel-1-2

  C. system-IDforee8a0c2.baf2device whose type isLevel-1

  D. R4belong only toLevel-1

  Correct Answer: BD

• Question 225:

  Which of the following statements about VLAN aggregation is true?

  A. Super-VLANOnly physical interfaces cannot establish Layer 3VLANIFinterface

  B. OneSuper-VLANcan contain one or moreSub-VLAN

  C. Sub-VLANContains physical interfaces. Three layers can be builtVLANIFinterface

  D. Sub-VLANfor isolating broadcast domains

  Correct Answer: BD

• Question 226:

  As shown in the figure, R1, R2, R3, and R4 are in the same PLs domain, and LDP is used to distribute IPLS labels between devices. R4 is the Egress LSR of the FEC 4.4.4.0/24. If you want to achieve R1 access 4.4.4.0/24, R4 does not need to query the label table but can know the forwarding priority of the data, then the outgoing label of R3 for the FEC should be:____. (Please fill in the Arabic numerals directly, without symbols)

  

  A. 0

  B. 1

  C. 2

  D. 3

  Correct Answer: A

• Question 227:

  The routing attributes of the three routing entries are shown in the figure. Assuming that the next hops of the three routing entries are all reachable, when these three routing entries are after the entries arrive at the BP router in order, by default, BGP will finally call a route entry?

  

  A. Route B

  B. Route C

  C. Route A

  D. slightly

  Correct Answer: C

• Question 228:

  CutoverThe previous information collection can be used to determine whether the services before and after the cutover are normal.

  A. right

  B. wrong

  Correct Answer: A

• Question 229:

  The default MPLS label publishing mode, label distribution control mode and label retention mode of Huawei routers are respectively

  

  A. Label release method - downstream autonomous methoD. label distribution control method - free methoD. label retention method - independent

  B. Label release method - free methoD. label distribution control method - independent methoD. label retention method - downstream autonomous method

  C. Label release method - downstream autonomous methoD. label distribution control method - independent methoD. label retention method - free method

  D. Label release method-independent methoD. label distribution control method-free methoD. label retention method-downstream autonomy

  Correct Answer: C

• Question 230:

  The description of the MPLS forwarding mechanism is correct

  A. The system automatically allocates aI. also known asTunnel ID

  B. whenIPmessage entryMRLSdomain, the first thing to look at isFIBsurface

  C. ifTumel IDvalue is not0x0,into the normalIPForwarding process

  D. ifTunnel IDvalue is0x0test entryMPLSForwarding process

  Correct Answer: AB