Free Access Huawei.H12-821_V1.0.v2022-07-23.q21 Practice Test (Page 3)

Question 6

Which of the following attribute must be carried in an Update message?

A.AS-Path

B.MED

C.Local-pref

D.Prefval

Question 7

Preferences of routing protocols determine the sequence In which a router selects a route among routes to the same destination /earned through different routing protocols.

A.FALSE

B.TRUE

Question 8

Which of the following statements regarding the LSA age field are true?

A.If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator of this LSA needs to regenerate an instance of this LSA again.

B.The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.

C.If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.

D.The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.

Question 9

A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?

A.Temperature monitoring

B.Voltage monitoring

C.System power-on and power-off control

D.Fan control

Question 10

ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?

A.If the firewall security policy permits packets to pass, the session table is created.

B.Packets must pass the firewall, and a session table is established.

C.By default, when status detection is disabled and the permit policy is configured packets can pass.

D.If the firewall security policy permits packets to pass, the packets can pass the firewall.

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Question 6

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Question 8

Question 9

Question 10

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