Huawei Huawei Certifications H12-891 Questions & Answers

• Question 141:

  Regarding the description of the hello message in the PIM-SM message, the error is ?

  A. Hello messages are sent to multicast address 224005

  B. Elect dr in multiple router segments with hello messages

  C. Routers periodically use hello messages to stay in touch

  D. In a PIM-SM network, a newly started multicast router needs to use hello messages to discover neighbors and maintain neighbor relationships

  Correct Answer: A

• Question 142:

  In broadcast networks, elections to DIS begin only after a neighbor relationship has been established

  A. True

  B. False

  Correct Answer: A

• Question 143:

  If you need to use the delault-route importd command if no default route exists in the local IP routing table , a default route is issued to the BGP peer (group).

  A. True

  B. False

  Correct Answer: B

• Question 144:

  What are the following statements about 8021x, RADIUS, and HWTACACS certification? ( Multiple choice questions).

  A. Users can use 8021x authentication to access the network and complete identity authentication through RADIUS

  B. RADIUS authentication and WTACACS authentication are mutually exclusive and cannot be two-factor authentication for the same user at the same time.

  C. RADIUS authentication and HWTACACS authentication can perform two-factor authentication for the same user at the same time, which is more secure.

  D. RADIUS authentication is mutually exclusive with 8021x authentication.

  Correct Answer: AB

• Question 145:

  There is an existing network of router RI, router R, router R3, and router R4 The 4 routers are interconnected via an LN network. All 4 routers are equipped with basic oSPF. When you execute the command "displayosp" on router R2 f peer", router R2 and router R3 are discovered The status between is "2-way". So what conclusions can you draw from this output? Multiple choice questions).

  A. Router R2 is not a DR

  B. Router R3 is not a DR, nor is it a BDR

  C. There is no full adjacency between router R2 and router R3

  D. Router R4 is destined for DR

  E. Router R2 is DR or BDR

  Correct Answer: ABC

• Question 146:

  Regarding the BGP alliance, the following description is wrong? Radio

  A. The consortium divides an AS into sub-AS, and the alliance external AS still considers the consortium to be an AS

  B. Subsystems within a consortium can use private AS numbers. Huawei NE/AR routers, a consortium can be configured with up to 32 subsystems.

  C. Consortium can easily detect the routing loop within the AS because EBGP is running between the subAS

  D. The subas number of the federation, which by default is advertised to the BGP peer outside the federation

  Correct Answer: D

• Question 147:

  Regarding the Stub region in the OSPF protocol, the following statement is correct.

  A. Virtual connections cannot traverse the Stub region

  B. Backbone zones cannot be configured as Stub zones

  C. ASBR cannot exist in the Stub zone

  D. Type7 LSA injection is not allowed in the Stub zone

  Correct Answer: ABCD

• Question 148:

  Run the SSM across the entire HW IP multicast network. The following about SSM understands correctly? ( Multiple choice question)

  A. No RP is required

  B. SSM uses only shared trees

  C. SSM uses only the SPT tree

  D. Ideal for 1-to-many applications

  E. SSM is recommended when you have multiple sources and expect to minimize the state of mroute in your network Ideal for many-to-many applications

  Correct Answer: ACD

• Question 149:

  The LSA of type certainly does not exist in the 220SPF Stub zone

  A. Type7

  B. Type5

  C. Type4

  D. Type3

  Correct Answer: ABC

• Question 150:

  When two devices with the same priority compete for the master role at the same time, the device on which the interface with the smaller IP address resides should be selected as the master device

  A. True

  B. False

  Correct Answer: B