Huawei Huawei Certifications H12-891 Questions & Answers

• Question 261:

  As shown in the figure, SWA, SWB runs the PSTP protocol, and Cost of Path remains the default without modification, so the following statement is correct

  

  A. GEO/0/1 on ASWB is Alternative port

  B. GE0/0/2 on SWB is Alternative port

  C. SWA On GEO/0/1 for backup port

  D. SWB will become the root bridge

  Correct Answer: B

• Question 262:

  What command can be used to prevent users from accessing multiple devices through the HUB on the switch's access port?( Radio).

  A. [Huawe interface Gigabithemeto/0/1[Huawei-GigabiEthermeto/O/lport linktypetrunk [HuawelGigabithemetO/1]port trunk allow pass vlan 10

  B. [Huawei interface GigabiEthemet/0/1[Huawe-GigablEthemetO/0/1Jpor ink type acess(Huawei GigabitEthemet/O/Tipsg enable

  C. Huawei interface GigabiEthemetO/0/1Huawei-GigabiEthemetO/OJport link-type acces Huawei GigabilEthemet/0/1port-secunty enable0

  D. [Huawei iterface Gigabithemeto/0/1 (Huawei-GigabitEthemeto//1)pot ink type access(HuawelCigabiEthemeto/1]portisolate enable

  Correct Answer: C

• Question 263:

  The following statement about a cross-domain MPLS VPN is mischaracteristic?

  A. When the public network tag is LDP only , for cross-domain VPN-optionC scenario 2, a three-layer tag is required in the packet forwarding process.

  B. For the cross-domain VPN-OptionB approach, an MP-eBGP neighbor relationship needs to be established between the two ASBRs.

  C. For the cross-domain VPN-OptionA mode, the route passed between the two ASBRs is a normal IPv4 route.

  D. For the cross-domain VPN-OptionB approach, two ASBR-PEs are interconnected with multiple interfaces (including sub-interfaces), each associated with a VPN, each ASBR PE treats the peer as a CE.

  Correct Answer: AD

• Question 264:

  Which of the following LSAs propagate in a single region only?

  A. Router LSA

  B. Summary LSA

  C. Network LSA

  D. AS External LSA

  Correct Answer: ABC

• Question 265:

  MQC, like PBR--can only be called under the device's Layer 3 interface.

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 266:

  Which of the following default routing delivery methods does OSPF support?( Multi-select)

  A. It can be issued without force

  B. Can be issued on ABR

  C. Issuance can only be enforced

  D. Answer can be issued on ASBR

  Correct Answer: ABD

• Question 267:

  When the ACL in the VRP has multiple matching rules (rules), the matching order is about Which of the following statements is true?( Confirmed).

  A. By default, matching is based on the principle of "depth first"

  B. By default: Match in the order in which the perfect is matched first, then deny is matched.

  C. By default, rule-ID is followed Match from small to large

  D. There is only one matching order and cannot be modified

  Correct Answer: C

• Question 268:

  In the use of the LACP protocol, the following description is correct ?( Multiple select).

  A. You can avoid the Eth-Trunk interface from frequently shaking interface eth-trunk 1l lacp preempt enable lacp preempt delay delay-time with the following command

  B. Source IP address load sharing, interface eth-trunk1Load-balance src-dst-ip, can be configured in an enabled link aggregation group with the following command

  C. The member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthemeto/0/1 Shutdown nterface Gigabithemet/O/1undo eth-trunklinterface GigabitEthemet0/0/1 undo shutdown

  D. A chain cluster that can be initiated through an order Join the member interface :interface GigabitEthemeto/0/1 shutdown interface igabitEthemetO/0/1 tunkportGigabitEthermet0/0/1 interface GigabitEthermet0/0/1 Undo shutdown

  Correct Answer: AC

• Question 269:

  Regarding the BGP ring protection mechanism, the following description is correct?

  A. A AS_PATH attribute is used between autonomous systems to prevent ring cats.

  B. The Cluster List property is used for reflector cluster inner ring defense, and the router finds that the Cluster List of route entries contains its own Client lD The route is rejected

  C. Routes learned from IBGP are not advertised to IBGP neighbors and are used to prevent routing loops inside the AS

  D. You can use the AS_CONFED_SET attribute to prevent loops within a consortium:

  Correct Answer: ACD

• Question 270:

  Regarding route introduction, what is the following description of the error?

  A. BGP supports both import and network when generating routes, and the network mode is more precise.

  B. By default, OSPF introduces an external route with a default metric of 1, and the level-2 network of the ingested external route type type, Type2

  C. ISIS, routes to Level After the 1 makes a route ingestion, if you do not manually configure the ingestion policy, a bad route will be formed.

  D. Introducing IBGP routing in OSPF may cause routing loops

  Correct Answer: C