Huawei Huawei Certifications H12-891 Questions & Answers

• Question 271:

  The following description of IGMPv1 and IGMPv2 is correct?( Multiple select).

  A. IGMPv2 message types include member departure packets

  B. IGMPv2 does not support specific group queries

  C. IGMPv1 supports universal group queries

  D. The IGMPv1 message type does not contain members leaving the packet AD

  Correct Answer: ACD

• Question 272:

  Is the following GR description of ISIS correct?

  A. The GR feature of AISIS is turned on by default.

  B. ISIS's GR has a total of four timers.

  C. ISIS's GR notifies of events and maintains neighbor relationships through CSNP messages.

  D. ISIS's GR defines a new TLV structure to support this feature.

  Correct Answer: D

• Question 273:

  For Layer 2 VPN technology, the following statement is correct?( Multiple choice questions).

  A. VPLS is a widely used technology in the live network, which can provide transparent transmission of three-layer messages and achieve multi-point access.

  B. The VPLS configuration is complex and the Layer 2 network transmits BUM packets.

  C. BGP EVPN supports features such as tenant isolation, Multi-homing , and broadcast suppression.

  D. BGP EVPN addresses issues such as MAC address drift and multi-tenancy that VPLS cannot support.

  Correct Answer: BC

• Question 274:

  ?BGP4+?,Update ????M IP_R EACH_NLRI ?????next hop network address ????? ?

  A. It can be just link-local address

  B. Can only be a link-local address

  C. You can carry a link-local address and a global unicast address

  D. at the same time Can only be a global unicast address

  Correct Answer: C

• Question 275:

  As shown below, what routes will R2 learn?( Single choice questions).

  

  

  A. R2 can learn the 101.20/24 and 101.30/24 routes.

  B. R2 can learn the 101.1.0/24 route.

  C. R2 can receive an LSP for R1, but cannot join to the routing table.

  D. R2 can learn all routes to R1.

  Correct Answer: D

• Question 276:

  HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

  A. ICMP and UDP

  B. IP ?TCP

  C. UDP

  D. NFS E. FTP

  Correct Answer: C

• Question 277:

  The router is running both OSPFv3 and ISIS, and the OSPFv3 route needs to be introduced to ISIS, which of the following ingestion configurations is correct:( Multiple choice questions).

  A. Huawel ias 1 ltuawei-i- isHeveleve!. l Huave-s-1 networkenity 47001.0000020 Hawe - sis-1 ipv6enabletopolog standard Htuawer is-] pob impot.

  B. (Huawei isis l Huawei-si-1 s-levelve!-l Huavei- ti.-1] networkentiy 4 .001.00001. Huawei sis pob enable topogy s andard Hhuawelitis ]l p6 importroute ospfv3 1 [Hu

  C. [Huawei] sis 1 [Huawel-isis-1] networkentity47001.000000200 Huawe-ss 1 ipb6enable topologist standard Huawei is l p6 importroue esgp.31lese! [Huaweisis-1] quit [Huawei

  D. HuaweJ IsIS [Huaweij isis 1 Huavei-isis-1]networkentity470001.000000020Huawei-sis- 1limpotroueosph31 ltuowe.is- ut tuawl sph 1 fhuwf spol Jronea d2222 [Huawei) isis 1 Huawe-sis-1] is level level-1 [Huaveisis-1 etworkentity 47001.0000020 Huawel-d.- 1[impotroteosph-1 le e. [tuawelts a ut ltunweospfv3 1 [Huawei

  Correct Answer: AC

• Question 278:

  What does RT do in MPLS VPN? Multiple choice questions).

  A. Allows the peer PE to decide which VPNv4 routes to import into a particular VRF

  B. Allows peer PE to decide which VPNv4 routes not to import into a particular VRF

  C. Allows the peer CE to decide which VPNv4 routes to import into a particular VRF

  D. Allows the peer CE to decide which VPNv4 routes not to import into a particular VRF

  Correct Answer: AB

• Question 279:

  The following link-LSA for OSPFv3 is correct?

  A. Contains both the link-local address of this interface and all IPV6 prefixes of the same area on this router.

  B. Contains both the link-local address of the interface and all IPv6 prefixes on the interface.

  C. ?Link-LSA ???Prefix ?Prefixoptions ???Ox00,?? Prefix ????IPv6??????

  D. The Option field exists in the header of the LSA, not in the data area of the Link-LSA

  Correct Answer: B

• Question 280:

  The flood range in OSPFv3 is the LSA within the entire autonomous system?

  A. Intra-Area-prefix-LSA

  B. AS-external-LSA

  C. Link-LSA

  D. Inter-Area-Prefix-LSA

  Correct Answer: B