Huawei Huawei Certifications H12-891 Questions & Answers

• Question 351:

  Which of the following statements about RADIUS is correct?( Single choice questions).

  A. MAC authentication does not require a username password, so you cannot use RADIUS to authenticate the user.

  B. RADIUS supports both wired and wireless access modes.

  C. SEPARATION OF RADIUS PROTOCOL AUTHENTICATION, AUTHORIZATION, AND AUDIT.

  D. RADIUS authentication and Portal authentication cannot be used together because the Portal server can typically be used to authenticate users when portal authentication is deployed.

  Correct Answer: B

• Question 352:

  By default, which of the following security MAC address types lose table entries after the device restarts?

  A. Sticty MAC address

  B. Black hole MAC address

  C. Secure static MAC address

  D. Secure dynamic MAC address

  Correct Answer: D

• Question 353:

  Regarding the description of the encapsulation format of the labels in MPLS, the correct one is ?

  A. The TTL field in the label has a similar meaning to the TTL (Time To Live) in the IP packet, and also has the effect of preventing loops

  B. The total length of an MPLS single tag is 4 bytes (32 bits).

  C. For Ethernet, PPP packets, the tag stack is like a "cushion layer", located between the layer 2 header and the data, and when there is a VLAN tag, the MPLS header is placed on the Ether head and VLANtag between

  D. label in the S field, lbit Used to identify whether the label is a bottom label, and a value of 1 indicates that it is the penultimate label

  Correct Answer: AB

• Question 354:

  Router RL runs the OSPF protocol and uses the display ip routing-tabe command to view the router RL's routing table , the following information about OSPF in the routing table is described correctly as ?

  A. In the routing table, the routing table entries identified by the OSPF identifier can only be learned

  through the 3 types of LSAs to

  B. In the routing table, used The 'OSPF' identifier identifies a route table entry that can only pass a Type 1 LSA

  C. In the routing table, the routing table entries identified with the 'OSPF identifier' can be learned through the 1/2/3/5 LSA to

  D. In the routing table, Route table entries identified with the "O_ASE identifier can only be learned through routing introduction

  Correct Answer: D

• Question 355:

  When configuring ISIS zone authentication, which ISIS message will carry the authentication letter? ( Single choice questions).

  A. ISIS ?Level-1 ?SNP ?LSP?

  B. ISIS ?Level-2 ?SNP ?LSP?

  C. Hello message of ISIS's Level-1.

  D. Hello message of ISIS's Level-2

  Correct Answer: A

• Question 356:

  If four routers run ISIS and have established an adjacency relationship, and the area code and router rank are marked as shown in the figure, what is the cost value of R4 reaching 10022/32?

  

  A. 10

  B. 20

  C. 30

  D. 40

  Correct Answer: C

• Question 357:

  By default, huawei firewalls provide the following security areas:

  A. Trust zone

  B. Security zone

  C. Local zone

  D. Untrust Zone

  Correct Answer: ACD

• Question 358:

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

  A. With Filter-Policy, on ASBR in OSPF, you can filter the generation of type5 LSA and type7LSA.

  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 using a prefix list to filter routes, the table entry ip-prefix 1 deny 0000 0 less-equal 32 matches only the default route.

  Correct Answer: A

• Question 359:

  As shown in the following topology, EBGP is running between ASI0O0, AS.203, AS.30, AS8400, and the neighbor relationship has been established as RECEIVed by AS4O0 When AS1OO issues a 1..11/2 CIDR segment BGP route, the path order recorded in the ASPath attribute is correct

  

  A. 10,200,3

  B. 400,300,200,100

  C. 100,200,300,400

  D. 300,200,100

  Correct Answer: D

• Question 360:

  When an administrator configures VRRP, which of the following is not required?

  A. Preemption mode

  B. Priority of the virtual router

  C. Preemption delay

  D. Virtual IP address

  Correct Answer: ABC