Huawei Huawei Certifications H12-891 Questions & Answers

• Question 511:

  BGP EVPN does MAC address advertisement, ARP message advertisement, and IRB route advertisement for which BGP EVPN route is advertised?

  A. Type3

  B. Type2

  C. Type4

  D. Type1

  Correct Answer: B

• Question 512:

  There is an existing router interface serial 0 in OSPF area 1 , well will interface Serial 0 is set to silent interface. So what is the impact of this setting?

  A. OSPF establishes usable adjacencies through this junction

  B. OSPF does not join the routes learned from the connector to the local routing table

  C. OSPF does not establish any adjacency relationships through the junction

  D. OSPF receives a route update answer from the neighbor.

  Correct Answer: C

• Question 513:

  If there is a switch running RSTP, which interface on that switch sends the BPDU with the Proposal logo??

  A. The specified port

  B. in the forwarding state. The specified port in a non-forwarding state

  C. Alternate port

  D. The root port in the Blocking state

  Correct Answer: B

• Question 514:

  In the topology shown in the figure. Running the OSPFv3 protocol over the entire network does not produce what type of LSA on R1 without external route introduction?

  

  A. Intra-Area-Prefix-LSA

  B. Inter-Area-RouterLSA

  C. Link-LSA

  D. Inter-Area-Prefix-LSA

  Correct Answer: B

• Question 515:

  The switch role in the stacking system does not include ?

  A. From the switch

  B. Candidate Switch

  C. Standby Switch

  D. Primary Switch

  Correct Answer: B

• Question 516:

  Is the following description of the BSR/RP mechanism correct?

  A. PIM-SM domain can have more than one C-BSR, but only one BSR can be elected by the C-BSR that receives the C-RP Packets are collected C-one RP information

  B. BSR advertises BSR and C-RP information to all routers in the PIM-SM domain by flooding Bootstrap packets

  C. A C-BSR can also collect C-RP information by receiving C-RP packets

  Correct Answer: ABC

• Question 517:

  BGP authentication can prevent illegal routers from establishing neighbors with BGP routers, BGP authentication can be divided into MD5 authentication and Keychain authentication, please ask which BGP messages will be carried below BGPKeychain authentication information?( Multiple select).

  A. Update

  B. Notification

  C. Keeplive

  D. Open

  Correct Answer: ABCD

• Question 518:

  A router Router LSA is shown in the figure below, and the following statement is incorrect?

  

  A. This router is a DR

  B. This router has established an adjacency relationship

  C. This router supports external route ingestion

  D. The Router ID of this router is 100121

  Correct Answer: A

• Question 519:

  Which of the following sequences can be matched by the regular expression [^100|200]$?

  A. 300200 100

  B. 200 100 300

  C. 100 200 300

  D. 100,300,200

  Correct Answer: BCD

• Question 520:

  You need to configure smart policy routing on the router to specify that specific traffic is forwarded through an interface. When policy-based routing is applied, what are the two most typical types of information that can be used to forward traffic along a particular path?

  A. The TTL and source IP address of the packet

  B. Source A address and the Layer 2 source address

  C. Source IP address and specific protocol (such as FTP, HTTP, etc.)

  D. Service type header and message length

  Correct Answer: C