Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 341:

  In the admission design of large- and medium-sized campus networks, which authentication mode can be used for PCs that connect through IP phones?

  A. MAC address authentication
  B. 802.1X authentication
  C. Multi-mode authentication
  D. Portal authentication
  C. Multi-mode authentication

• Question 342:

  You want only Telnet streams to access the server with the address 10.11.100. To achieve this, you add the following ACL to the routing ring:

  rule 5 permit ip source any destination 10.11.100.0 destination-port eq 23 rule 10 deny ip source any destination any You apply this ACL to the ingress direction of the router's serial interface. Which types of messages are allowed to pass through the router? (Choose three)

  A. A non-fragmented packet accessing port 21.
  B. Non-first-fragment messages that use port 23 to access the server.
  C. Non-first-fragment messages to access other hosts.
  D. Non-first-fragment packets that use port 21 to access the server.
  E. Responses for the first-fragment or non-fragmented packets using port 23 to access the server.
  B. Non-first-fragment messages that use port 23 to access the server.
  D. Non-first-fragment packets that use port 21 to access the server.
  E. Responses for the first-fragment or non-fragmented packets using port 23 to access the server.

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  Explanation

• Question 343:

  Before connecting an SSH client to an SSH server in public key authentication mode, the client must first create a key pair. Which of the following commands is used to create a DSS key pair on the client using Git Bash?

  A. ssh-keygen -t dss
  B. ssh-keygen -t ecc
  C. ssh-keygen -t dsa
  D. ssh-keygen -t rsa
  C. ssh-keygen -t dsa

• Question 344:

  DRAG DROP

  Drag the IPsec functions on the left to the corresponding function description on the right.

  Select and Place:

  

  

• Question 345:

  All interfaces of the router have OSPF enabled. The Cost values of the links are shown in the figure. R2's Loopback0 address 10.0.2.2/32 is advertised in Area 1. What is the Cost for R1 to reach 10.0.2.2/32?

  

  A. 50
  B. 150
  C. 200
  D. 100
  C. 200

• Question 346:

  Which of the following fields is added to BGP4+ Update packets to advertise IPv6 routes?

  A. A new path attribute: MP_UNREACH_NLRI
  B. A new path attribute: MP_REACH_NLRI
  C. A new path attribute: IPv6_REACH_NLRI
  D. A new NLRI type: IPv6_NLRI, which carries the IPv6 NLRI prefix length and IPv6 NLRI prefix.
  B. A new path attribute: MP_REACH_NLRI

• Question 347:

  The interface Serial0 of an existing router is in OSPF area 1, and the interface Serial0 is set to Silent interface. So what kind of impact will this setting have?

  A. OSPF establishes available adjacencies through this interface
  B. OSPF does not add routes learned from the interface to the local routing table
  C. OSPF does not establish any neighboring relationships through this interface
  D. OSPF receives routing updates from neighbors
  C. OSPF does not establish any neighboring relationships through this interface

• Question 348:

  FILL IN THE BLANK

  The command ______ can be run to completely isolate Layer 2 and Layer 3 of different interfaces within a VLAN.

  port-isolate mode l2-l3

• Question 349:

  Which of the following description about configuring BGP4+ is correct? (Choose two)

  A. BGP4+ does not support route reflectors.
  B. The next hop of a BGP4+ route can use the Link-Local address.
  C. When BGP4 configures a reflector, the role positioning of the reflector and the client needs to be consistent with the configuration of BGP4.
  D. BGP4 specifies ...
  E. BGP4+ Router-ID = BGP4 Router-ID
  B. The next hop of a BGP4+ route can use the Link-Local address.
  E. BGP4+ Router-ID = BGP4 Router-ID

• Question 350:

  ISIS IPv6 cost 50 is configured under the interface, and the meaning of the command is?

  A. The Level-1 and Level-2 costs of the interface's IS-IS IPv6 are 50
  B. The Level-1 and Level-2 costs of the interface's IS-IS IPv6 are both 60
  C. The Level-2 cost of the interface's IS-IS IPv6 is 50
  D. The Level-1 cost of the interface's IS-IS IPv6 is 50
  A. The Level-1 and Level-2 costs of the interface's IS-IS IPv6 are 50

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