Huawei H12-821 Online Practice Questions and Exam Preparation

Huawei H12-821 Online Questions & Answers

• Question 221:

  Which of the following statements regarding the OSPF protocol is false?

  A. Each OSPF router uses only one Router-LSA to describe the local active connection status of an area.
  B. Routing information can be advertised only between backbone and non-backbone areas and cannot be advertised directly between non-backbone areas.
  C. Router-LSA describes four connection types: P2P, TransNet, SubNet, and virtual link.
  D. Link State ID in a Type 3 LSA indicates the router ID of an ABR.
  D. Link State ID in a Type 3 LSA indicates the router ID of an ABR.

• Question 222:

  In IPv6 NDP (Neighbor Discovery Protocol) , uses multiple types of ICMPv6 packets . Which of the following functions are RS (Router Solicitation) packets used for?

  A. Duplicate address detection
  B. Prefix readdressing
  C. Redirection
  D. Address resolution
  D. Address resolution

• Question 223:

  Which of the following statements is false about BFD?

  A. The asynchronous mode is the primary BFD operating mode.
  B. In asynchronous mode, two systems periodically exchange BFD Control packets at the negotiated interval. If one system does not receive any BFD Control packets from the other within the detection interval, the BFD session is declared down.
  C. The asynchronous mode does not support the echo function.
  D. In demand mode, after a BFD session is set up, the system does not periodically send BFD Control packets.
  C. The asynchronous mode does not support the echo function.

• Question 224:

  Which of the following parameters are not mandatory during the configuration of a BGP peer?

  A. password
  B. Peer IP address
  C. as-number
  D. description
  A. password
  D. description

• Question 225:

  An enterprise uses OSPF to implement network communication. To ensure data validity and security, all authentication modes supported by OSPF are enabled on routers. In this case, interface authentication is preferentially used by the routers.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 226:

  Which of the following statements regarding an IP prefix are true?

  A. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.
  B. An IP prefix filter cannot be used to filter data packets.
  C. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.
  D. An IP prefix filter can be used to filter data packets.
  C. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.

• Question 227:

  Route summarization is a mechanism that combines multiple routes. BGP supports automatic summarization and manual summarization on IPv6 networks.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 228:

  CORRECT TEXT

  There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.

  SPT

• Question 229:

  Which of the following LSAs are advertised only within a single area?

  A. Network LSA
  B. Router LSA
  C. Summary LSA
  D. AS External LSA
  A. Network LSA
  B. Router LSA

• Question 230:

  When a BGP device sends an Open message to establish a peer connection, which of the following information is carried?

  A. Local AS number
  B. Router ID
  C. NLRI
  D. Hold time
  A. Local AS number
  B. Router ID
  D. Hold time