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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

Man-in-the-middle attacks are: the middleman completes the data exchange between the server and the client. In the server's view, all messages are sent or sent to the client. From the client's point of view, all messages are also sent or sent.

Options:

A.

Packet 1: Source IP 1.1.1.1 Source MAC C-C-C Destination IP 1.1.1.2 Destination MAC B-B-B

B.

Packet 1: Source IP 1.1.1.3 Source MAC C-C-C Destination IP 1.1.1.2 Destination MAC B-B-B

C.

Packet 2: Source IP 1.1.1.2 Source MAC C-C-C Destination IP 1.1.1.1 Destination MAC A-A-A

D.

Packet 2: Source IP 1.1.1.3 Source MAC C-C-C Destination IP 1.1.1.1 Destination MAC A-A-A

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Question 2

As shown in the following figure, the BFD for OSPF network is as follows: 1. OSPF is running between the three devices: FW_A, FW_B, and FW_C. The neighbors are in the FULL state. The association between BFD and OSPF is complete. BFD is complete. To establish a BFD session, the following instructions are correct?

Options:

A.

When link a fails, BFD first senses, and FWA and FWB will converge immediately.

B.

link switching is switched in seconds

C.

FWA processes the neighbor Down event and recalculates the route. The new route is link b.

D.

When link a finds a fault, OSPF automatically converges and notifies BFD.

Question 3

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.