Huawei Huawei Certifications H12-831 Questions & Answers

• Question 231:

  As shown in the figure, a park has deployedIPv6For business testing, the network has4router. run 0SPFV3Realize network interconnection. about theOSPFV3network generatedLSA. Which of the following statement it's wrong?

  

  A. R1will produceRouter-LSADescribing the device interface information will be received at the same timeR2andR3produced Router-LSA

  B. R1ofLSDBhaveR3producedNetwork LSA. illustrateR3may be from this linkDR

  C. R1will receiveR2produced2indivualLink-LSA. Describe separatelyR2Information about the two links connected

  D. R2asA, BRWill produceInter-Area-Prefix-LSAdescribeArea 1ofIPv6address prefix, and advertise GiveR1andR3

  Correct Answer: C

• Question 232:

  As shown in the figure, all interfaces of the router enable DSPF. The cost value of the link is marked in the figure. R2 The LoopbackD interface is advertised in area 1, then the cost of R1 reaching 10.2/32 is?

  

  A. 200

  B. 150

  C. 50

  D. 100

  Correct Answer: A

• Question 233:

  Which of the following statements about the MP_REA, CH_NLRI attribute of BGP4+ is correct?

  A. The length of the next hop address can be16or3

  B. AFI (address family)value is2,representIPv6

  C. NLRIfield carryIPv6Routing prefix and mask information

  D. the length of the next hop address is16Time,Network Address of Next Hopcarries the link-local address

  Correct Answer: ABC

• Question 234:

  As shown in the figure, OSPF is deployed in a campus, and Area 1 is deployed as an NSSA area. In the case of missing header, R2 will automatically generate a missing header route of Type 7 LSA and flood it in the NSSA area.

  

  A. True

  B. False

  Correct Answer: A

• Question 235:

  Which of the following statements about MUX VLANs are true?

  A. eachGroup VLANmust bind aPrincipal VLAN

  B. Separate VLANscan andMUX VLANall withinVLANcommunication

  C. eachSeparate VLANsmust bind aPrincipal VLAN

  D. Principal VLANcan andMUX VLAIall withinVLANcommunication

  Correct Answer: ACD

• Question 236:

  Which statement about DHCP Snooping is wrong?

  A. DHCP SnoopingYou can prevent illegal attacks by setting trusted ports (all interfaces are untrusted by default mouth)

  B. Global enableDHCP Snoopingfunction, without any post-parameters, the device only processes by default DHCPv4message

  C. Enable in interface viewDHCP Snoopingfunction, then all theDHCPThe message command function takes effect

  D. existVLANEnable in viewDHCP Snoopingfunction, then all interfaces of the device receive data belonging to thisVLANofDHCPThe message command function takes effect

  Correct Answer: A

• Question 237:

  A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFV3.

  Interconnection of IPv6 networks. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of them Link-LSAs. Which of the following statements is true about the description of this LSA?

  

  A. R2interfaceGEO/O/OThe link-local address force:FE80::2E0;FCFF:FEC, D:4F79

  B. produce theLSAThe router isR2

  C. ShouldLSAshowR2External routing is not supported, but participatingIPv6route calculation

  D. R2interfaceGE0/0/0IPV6address prefix:2001:2343:23: :/64

  Correct Answer: ABD

• Question 238:

  As shown in the figure, the MP_BGP neighbor relationship is established between PE1 and PE2 through the LoopbackO interface. After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other. Which of the following options will cause this problem.

  

  A. PEIorPE2not presentBGP-VPNv 4Enabling neighbors in unicast address family view

  B. PE1orPE2眔fVPNInstance parameter configuration error

  C. PE1andPE2betweenLSPTunnel not established

  D. PF1orPE2with each otherCEMisconfigured routing protocol between

  Correct Answer: ABCD

• Question 239:

  An engineer uses two routers to test IPv6 services, and simulates the headquarters and branches by running BGP4+ of interconnection. As shown in the figure, an engineer captures packets to view the update packets sent by R1. About this message Description of information, which of the following statements is correct

  

  A. The next hop address of the route described in this packet is:2001:db8::2345:l.:l

  B. This message describes the current revocationIPv6routing

  C. The route described in this packet may be throughimportbow

  Correct Answer: C

• Question 240:

  After a fault occurs, you need to collect and back up various types of fault information in time as a reference for troubleshooting. In addition, when seeking emergency assistance from Huawei Technologies Co., Ltd.

  A. True

  B. False

  Correct Answer: A