Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 571:

  When Huawei iMaster NCE-IP is used to configure SR-MPLS TE tunnels, which protocol does the controller use to collect device running status information?

  A. Telemetry
  B. Telnet
  C. BGP-LS
  D. IS-IS
  A. Telemetry

• Question 572:

  In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about the functions of BGP EVPN Type 3 routes is incorrect?

  A. If the VTEP IP address of a Type 3 route is reachable at Layer 3 and the peer VNI is the same as the local VNI, an ingress replication list is created for forwarding BUM packets.
  B. Type 3 routes carry L2VNIs and VTEP IP addresses.
  C. Type 3 routes carry L3VNIs.
  D. If the VTEP IP address carried in the received Type 3 route is reachable at Layer 3, a VXLAN tunnel to the peer end is established.
  C. Type 3 routes carry L3VNIs.

• Question 573:

  FILL IN THE BLANK

  The Ingress VTEP performs both Layer 2 and Layer 3 table lookup for packet forwarding. The forwarding mode is _____ IRB forwarding. (Capitalize the first letter.)

  Asymmetric

• Question 574:

  Which of the following statements about GRE is incorrect?

  A. GRE can encapsulate IPv6 unicast packets.
  B. GRE can encapsulate IPv4 unicast packets.
  C. GRE can encapsulate IPv6 broadcast packets.
  D. GRE is easy to implement and puts little burden on devices at both ends of a tunnel.
  C. GRE can encapsulate IPv6 broadcast packets.

• Question 575:

  Given the following scenario with a router's LSDB and a newly received LSP, which statement is incorrect?

  A. This router will put the newly received LSP into the LSDB.
  B. In the case of a broadcast network, DIS will include summary information for this LSP in the next CSNP message.
  C. This router ignores LSPs received from neighbors.
  D. If it is a point-to-point network, the router will send PSNP.
  C. This router ignores LSPs received from neighbors.

  ---

  Explanation

• Question 576:

  Which of the following statement about the LSAs of OSPFv3 is correct? (Choose two)

  A. The Link State ID of Inter-Area Prefix-LSA contains prefix information
  B. Router-LSA and Network-LSA do not contain routing information
  C. When the Referenced Link State Type of the Intra-Area Prefix-LSA is 2, the Referenced Link State ID contains the interface ID of the DR
  D. Inter-Area Prefix-LSA also contains Link-Local information
  B. Router-LSA and Network-LSA do not contain routing information
  C. When the Referenced Link State Type of the Intra-Area Prefix-LSA is 2, the Referenced Link State ID contains the interface ID of the DR

• Question 577:

  The display current-configuration command displays the running configurations in memory.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 578:

  Which of the following statements are correct about the authentication protocols used in Portal authentication? (Choose two)

  A. When Portal is used as the authentication protocol, the Portal server needs to exchange authentication information with the access device, which then sends the information to the authentication server for identity authentication.
  B. When Portal is used as the authentication protocol, the Portal server and access device only need to support the Portal protocol, but not the HTTP and HTTPS protocols.
  C. When HTTP or HTTPS is used as the authentication protocol, none of the devices involved in the authentication process need to support the Portal protocol.
  D. When HTTP or HTTPS is used as the authentication protocol, the client needs to send authentication information to the access device, which then sends the information to the authentication server for identity authentication.
  A. When Portal is used as the authentication protocol, the Portal server needs to exchange authentication information with the access device, which then sends the information to the authentication server for identity authentication.
  D. When HTTP or HTTPS is used as the authentication protocol, the client needs to send authentication information to the access device, which then sends the information to the authentication server for identity authentication.

• Question 579:

  /ifm/interfaces/interface in the Huawei Open Programmability System (OPS) is the URL used to identify a device's managed object.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 580:

  Which of the following descriptions about Filter-Policy is correct?

  A. With Filter-Policy, on the ASBR in OSPF, Type 5 LSA and Type 7 LSA can be filtered when they are generated.
  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 filtering routes using the prefix list, the table entry ip-prefix deny 0.0.0.0 less-equal 32 indicates that only the default route matches.
  C. Filter-policy filters the link state information received or published and can modify the properties of route entries.

  ---

  Explanation