Huawei Huawei Certifications H12-891 Questions & Answers

• Question 591:

  XLAN uses BGP EVPN to establish a tunnel, what type of message is used? ( Single choice questions).

  A. Typel

  B. Type2

  C. Type3

  D. Type4E. Type5

  Correct Answer: C

• Question 592:

  In RSTP , which port provides a backup path to reach the root node of the spanning tree? What state is the port in?

  A. Root Port and Listening Status

  B. Alternate Port and Forwarding Status

  C. Alternate Port and Learning Status

  D. Designated port and Listening status

  E. Alternate port and Discarding status

  Correct Answer: E

• Question 593:

  IPV6 multicast introduces the concept of multicast scope, which of the following ways is the multicast scope concept implemented? Multi-select

  A. When the group shake source sends IP6 multicast data, the TTL value of the packet is set to limit the transmission range of the group shake

  B. There is a special field in the IPv6 multicast address that specifies the propagation range of multicast.

  C. Multicast scope is just a concept of spreading scope, and there is no specific technical implementation.

  D. During network configuration, the administrator uses the configuration command at the edge of the network to limit the multicast scope.

  Correct Answer: BD

• Question 594:

  If a DR needs to be elected between multicast routers running PIM-SM to be responsible for the sending and receiving of source or member multicast data, which one is described correctly below for the DR election rule?

  A. PIM routers with long interface masks are elected dr.

  B. Compare the DR priority first; With the same priority, you need to compare the interface IP addresses of the PIM routers to elect dr

  C. PIM routers with small IP addresses are elected DR. PIM routers with low D. DR priority values are elected DR.

  Correct Answer: B

• Question 595:

  After BGP introduces routes for other protocols, the next hop in the BGP routing table is consistent with the next hop of the introduced routing protocol

  A. True

  B. False

  Correct Answer: B

• Question 596:

  If the Option field value in the 0SPFv3 Hello message issued by the router's GIgabit Ethermet0/0 interface is 0x000013, the following description is correct

  A. The Gigabit/thernetO/0/0 interface of Router A adds IPv6 routing to compute

  B. Router A's Gigabit/thernetO/0/0 interface belongs to the NSSA zone

  C. Router A supports AS-An External-LSA flood

  D. Router A is an OSPFv3 device with forwarding capability

  Correct Answer: ACD

• Question 597:

  The following description of the link state protocol is plausible?

  A. CPU utilization is high and loops are easy to generate

  B. Slow convergence and low CPU utilization

  C. Fast convergence and low CPU utilization

  D. Fast convergence and high CPU utilization

  Correct Answer: D

• Question 598:

  The following description of Filter-Policy is correct?( Radio).

  A. A With Filter-Policy, on ASBR in OSPF, type5LSA and type7LSA can be applied The build is filtered.

  B. Prefix lists can be used to filter both routes and packets.

  C. Filter-policy filters the link state information received or published, and can modify the properties of route entries.

  D. When filtering routes using the pre-slow list, the table entry ip-prefxldeny0000 0 lese- qual 32 indicates that only the default route matches

  Correct Answer: C

• Question 599:

  Which of the following messages does the BGP protocol support?

  A. Update

  B. Open

  C. Hello

  D. Keepalive

  Correct Answer: ABD

• Question 600:

  Is the following description of ospf virtual links correct?

  A. A virtual connection can be established in any area, after which it itself belongs to the region

  B. The virtual connection ip is used as the link address

  C. Virtual links can be used to solve the problem of zone 0 being segmented

  D. The cost of a virtual connection is zero and is the optimal link

  Correct Answer: C