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H12-721 Exam Dumps : Huawei Certified ICT Professional - Constructing Infrastructure of Security Network

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Huawei Certified ICT Professional - Constructing Infrastructure of Security Network Questions and Answers

Question 1

What is the correct statement about the ip-link feature?

Options:

A.

ip-link is a function to detect link connectivity

B.

ARP detection mode only supports detecting direct links (or forwarding through Layer 2 devices in the middle)

C.

The firewall sends ICMP or ARP packets to a probe destination address to determine whether the destination address is reachable.

D.

ip-link is associated with VGMP, the ip-link status is down, and the VGMP management group priority is lowered by default.

 

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Question 2

112. The ESP only verifies the IP payload and can perform NAT traversal, but the ESP encrypts the Layer 4 port information and causes the PAT function to be unusable. This problem can be solved by using the IPSec transparent NAT function, which encapsulates the ESP packet in the UDP header and comes with the necessary port information to make the PAT work normally.

Options:

A.

TRUE

B.

FALSE

Question 3

Which of the following states indicates that a BFD session has been successfully established?

Options:

A.

down

B.

init

C.

up

D.

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