Huawei Huawei Certifications H12-891 Questions & Answers

• Question 471:

  When deploying the ISIS protocol in an IPv6 environment , the following statement is correct (single choice).

  A. By default, the DIS priority for broadcast network interfaces at Level-1 and Level-2 is 1

  B. In broadcast networks, IPv4 and The DIS priority for IPv6 can be set separately

  C. In the same broadcast network. If each router supports both IPv4 and IPv6 The DIS for IPv4 and IPv6 must be the same device

  D. IS-IS is configured under the finger port is ISIS silent, this interface will not send ISIS packets, but will receive ISIS packets

  Correct Answer: C

• Question 472:

  The following description of the GVRP interface registration mode in Huawei switches is correct?

  A. When fixed registration mode is selected, the interface cannot propagate dynamic VLANs

  B. When the normal registration mode is selected, allow the interface to dynamically register and unregister the VLAN. Logout here includes deleting dynamically learned VLANs and VLANs created natively by the administrator

  C. When the interface layer two operating mode must be hybird

  D. GVRP when the register mode with forbidden is selected, there are four types of interface registration mode

  Correct Answer: A

• Question 473:

  The router port to which the policy is applied has been idle for about 10 seconds, and there is a huge burst of c1 type coming in an instant, so how many bytes will the packets that are colored green?

  A. 256K bytes

  B. 48128 bytes

  C. 32K bytes

  D. 80128 bytes

  Correct Answer: C

• Question 474:

  As shown in the figure, R1, R2, and R3 run OSPP at the same time and declare their respective ring ports, as described below is the error.

  A. R2, you can use the filter po y export command to filter R3's loopback route

  B. R2 you can make Ëfilter in Area 0 The import command to filter the loopback route for R3 on

  C. R1 can make Ëfilter-policy import filter the loopback route for R3

  D. R1, you can use the Make Ëfilter export command in Area 1 to filter loopback routes for R3

  Correct Answer: A

• Question 475:

  The rules for RR to publish routes break the rules for horizontal segmentation of IBGP, so it is possible to cause loops within the AS. What routing attributes does RR use to prevent loops?

  A. Nexthop

  B. Originator ID

  C. AS-PATH

  D. Cluster List

  Correct Answer: BD

• Question 476:

  As shown in the figure, SWA, SWB, SWC all run RSTP, GED/O/2 on SWB Ports and GEO/0/1 ports on SWC have a port role of ? Radio

  A. Alternative port, Backup port

  B. Backup port, root port

  C. Root port, Designated port

  D. Backup port, Alternative port

  Correct Answer: D

• Question 477:

  The following description of Link ID, Data, Type, and Metirc in Router-LSA is correct :( Multiple select).

  A. Metric describes the overhead of this connection

  B. The Link ID represents the local identity of this connection, and the different connection types The Link ID represents different meanings

  C. Data is used to describe additional information for this connection, and different connection types describe different information

  D. Type indicates the type of connection

  Correct Answer: ABCD

• Question 478:

  The following description of the attributes of BGP is correct? Radio

  A. The AS number of the adjacent AS, ranked to the far right of the list of AS_Path in the BGP route entry.

  B. When a BGP Speaker publishes a route learned from an EBCP peer to an IBGP peer, it does not change the next hop attribute of that routing information.

  C. Local_Pref is valid only between EBGP peers and is not advertised to third-party AS

  D. A route can have only one community attribute value.

  Correct Answer: B

• Question 479:

  The following description of BGP load sharing is wrong with ?( Multiple choice question)

  A. The AS_Path properties of the equivalent routes that form load sharing must be different.

  B. The destination CIDR blocks are the same, and load sharing can be formed between BGP routes with different sources.

  C. If BGP load sharing is implemented , the local device needs to configure the peer next- hop-local command to change the next hop address to its own address when issuing a route to an IBGP peer group .

  D. IBGP routes and EBGP routes that reach the same destination in the public network can form a load sharing

  Correct Answer: ABCD

• Question 480:

  By default, routers running IS-IS in broadcast networks have a period of seconds for DIS to send CSNP packets?

  A. 33

  B. 40

  C. 30

  D. 10

  Correct Answer: D