Huawei H12-821 Online Practice Questions and Exam Preparation

Huawei H12-821 Online Questions & Answers

• Question 191:

  OSPF has multiple types of routes with varying priorities. Which of the following types of routes has the lowest priority when they have the same prefix?

  A. Type 1 external route
  B. Inter-area route
  C. Type 2 external route
  D. Intra-area route
  C. Type 2 external route

• Question 192:

  IGMP group entries play an important role in multicast forwarding. An administrator runs a command to view information about a multicast entry. The information is as follows: display igmp group Interface group report information Vlanif100(10.1.6.2): Total 1 IGMP Group reported Group Address Last Reporter Uptime Expires

  225.1.1.2 10.1.6.10 00:02:04 00:01:17

  Given this, which of the following statements are true?

  A. This entry can be used to construct the corresponding (S, G) entry.
  B. This entry is created when the device receives an IGMP Join message from a user.
  C. Expires indicates the aging time of the IGMP group.
  D. 225.1.1.2 is the address of the group that the user joins.
  B. This entry is created when the device receives an IGMP Join message from a user.
  C. Expires indicates the aging time of the IGMP group.
  D. 225.1.1.2 is the address of the group that the user joins.

• Question 193:

  The AS_Path attribute is an important BGP attribute used for route selection. Which of the following statements are true about this attribute?

  A. When a route is advertised to an IBGP peer, the AS_Path remains unchanged.
  B. This attribute can be used to prevent BGP routing loops.
  C. This attribute is a well-known discretionary attribute that must be identified by all BGP routers.
  D. BGP ignores AS_Confed_Sequence and AS_Confed_Set when calculating the AS_Path length.
  A. When a route is advertised to an IBGP peer, the AS_Path remains unchanged.
  B. This attribute can be used to prevent BGP routing loops.
  D. BGP ignores AS_Confed_Sequence and AS_Confed_Set when calculating the AS_Path length.

• Question 194:

  What parameters can a DHCP6 server assign to a DHCPv6 client?

  A. Gateway address
  B. DNS server address
  C. IPV6 address/prefix
  D. SNTP server address
  B. DNS server address
  C. IPV6 address/prefix
  D. SNTP server address

• Question 195:

  In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 196:

  After the administrator of an enterprise deploys a DHCP server, employees complain that their clients cannot obtain IP addresses from the DHCP server. Which of the following may cause this problem?

  A. Multiple DHCP servers are configured.
  B. STP is enabled on the DHCP server.
  C. The DHCP function is disabled by default, and the administrator forgets to enable the DHCP function.
  D. DHCP clients and the DHCP server are on different network segments, and no DHCP relay agent is configured on the network.
  C. The DHCP function is disabled by default, and the administrator forgets to enable the DHCP function.
  D. DHCP clients and the DHCP server are on different network segments, and no DHCP relay agent is configured on the network.

• Question 197:

  In the OSPF protocol, inter-area route calculation involves only Router LSA, Network LSA, and Summary LSA.

  A. TRUE
  B. FLASE
  B. FLASE

• Question 198:

  In an OSPF routing domain, two routers must be specified as one DR and one BDR in a broadcast or NBMA network with at least two routers.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 199:

  Which of the following statements regarding BGP route advertisement are false?

  A. All the BGP routes learned from all BGP peer will be advertised to other BGP peers.
  B. Only the optimal routes preferred by BGP can be advertised to other BGP peers.
  C. By default, the routes learned from an IBGP peer will not be forwarded to other IBGP peers.
  D. Only the routes learned from IGPs can be advertised to other BGP peers.
  A. All the BGP routes learned from all BGP peer will be advertised to other BGP peers.

• Question 200:

  OSPF supports area authentication and interface authentication. If both authentication modes are configured, Interface authentication takes preference over area authentication.

  A. TRUE
  B. FALSE
  A. TRUE