Huawei HCIP-Datacom-Core Technology V1.0 認定 H12-821_V1.0-ENU 試験問題:

1. Which of the following descriptions about VRRP fast switching is wrong? (Multiple choice)

A) Use VRRP to monitor the BFD session or EFM function. After the BFD session or EFM session status changes, the VRRP module will be notified to realize VRRP fast switching
B) The VRRP backup group monitors common BFD and when the BFD state changes, it will change the master/standby state by modifying the priority of the backup group. When the monitored BFD session state recovers, the priority of the router in the backup group will be restored to original value
C) If multiple BFDs are configured to monitor at the same time, each configuration is related to each other and may affect each other
D) A VRRP backup group cannot monitor Peer BFD, Link BFD and Normal BFD at the same time

2. As shown in the figure, if the user wants to use SSH to access the Headquarter S_Site server through the public network, and for security reasons, the destination port number accessed from the external network cannot be the same as SSH, then which of the following NAT can be used? Is the technology capable of meeting this need?

A) Static NAT
B) NAPT
C) NAT Server
D) Dynamic NAT

3. TLV is an important data structure in IS-IS. Which of the following options does it represent?

A) Text, Level and Volume
B) Time, Length and Volume
C) Type, Length and Value
D) Time, Level and Value

4. The Hold time carried by BGP neighbor PeerA in Open is 90s, the Hold time carried by Peer in Open is 30s, and the time for PeerA and PeerB to send Keepalive messages after successful connection establishment is

A) Do not send Keepalive messages
B) 30s
C) 90s
D) 10s

5. The network administrator of a company checks the FIB of the router. What fields does the FIB contain? (Multiple choice)

A) Protocol
B) Destination/Mask
C) Cost
D) TimeStamp

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