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Free Huawei H12-261_V3.0 Exam Questions (page: 20)

Page 20 of 120
PDF with 479 Questions

In RSTP, what kind of port can provide a backup path to the root of the spanning tree? What state is the port in?

  1. Root port and Listening state
  2. Alternate port andForwarding state
  3. Alternate port and Learning state
  4. Designated ports and isting states
  5. Alternate port and Discarding state

Answer(s): E

Explanation:

Section: (none) Explanation existThere are only three port states in RSTP, Discarding, Learning and Forwarding. RSTP defines 3 port roles (STP has 5 roles) according to the role of the port in the active topology:
Disabled Port, Root Port Port), designated port (Designated Port), an alternate port specified for the fast feature that supports RSTP
(Alternate Port) and the backup port (Backup Port)



ISIS protocol in broadcast network and P2P network, when router receives LSP, it needs to use PSNP confirms to ensure the synchronization of LSDB.

  1. True
  2. false

Answer(s): B



Which of the following statements about the tail of ISIS protocol LSP packets is correct?

  1. LSP fast diffusion feature, first diffuse LSPs less than the specified number to speed up the synchronization process of LSDB
  2. by configurationAn intelligent timer generated by LSP, which can automatically adjust the delay time according to the changing frequency of routing information
  3. When the link state information increases, the packet length of the LSP can be increased, so that each LSP can carry more information.
  4. Decreasing the minimum time interval for sending LSPs by port can speed up the diffusion of LSPs.

Answer(s): A,B,C,D



Router R1 and Router R2 run BGP. Both routers are in AS65234. Router R2's route exists in router R1's BGP routing table, but not in router R1's IP routing table. So what caused the problem to happen?

  1. Sync is turned off
  2. BGP neighbor relationship is Down
  3. routerR1 does not have BGP enabled Multi-hop
  4. Routing is not optimal

Answer(s): D

Explanation:

The optimal BGP route will be sent to the IProuting table



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