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

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Question # 17

USG dual-machine hot standby must meet certain conditions and can be used below. What are the following statements correct?

major and backup equipment must have the same product model

The software version of the active and standby devices must be the same.

The interface IP of the active and standby devices must be the same.

The primary device must be configured, and the standby device does not require any configuration.

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Question # 18

An administrator can view the IPSec status information and Debug information as follows. What is the most likely fault?

local IKE policy does not match the peer IKE policy.

local ike remote name does not match peer ike name

local ipsec proposal does not match the peer ipsec proposal

The local security acl or the peer security acl does not match.

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Question # 19

Which of the following methods is used to switch between active and standby links in the IPSec backup and backup system?

hot standby

link-group

Eth-trunk

ip-link

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Question # 20

Which of the following encryption methods does IPSec VPN use to encrypt communication traffic?

public key encryption

private key encryption

symmetric key encryption

pre-shared key encryption

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Question # 21

71. Which option is incorrect about the HTTP Flood defense principle?

HTTP Flood source authentication

URI detection of destination IP

fingerprint learning

load check

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Question # 22

Which is the correct packet encapsulation order for L2TP over IPSec?

The order from the first package to the post package is PPP-->UDP-->L2TP-->IPSec

The order from the first package to the back package is PPP--> L2TP-->UDP--> IPSec

The order of C from pre-package to post-encapsulation is IPSec --> L2TP-->UDP--> PPP

The order of D from pre-package to post-encapsulation is IPSec --> PPP --> L2TP-->UDP

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Question # 23

A user wants to limit the maximum bandwidth of the 192.168.1.0/24 network segment to 500M, and limit all IP addresses in the network segment to maintain a bandwidth of 1M. How should I configure a current limiting policy for this requirement?

Configure per-IP traffic limiting. The maximum bandwidth of the host on the 192.168.1.0/24 network segment is 500M.

Configure overall traffic limiting. The maximum bandwidth of the host on the network segment 192.168.1.0/24 is 1M.

Configure the overall traffic limiting. The maximum bandwidth of the host on the 192.168.1.0/24 network segment is 500M.

Configure the overall traffic limiting. The maximum bandwidth of the host on the network segment 192.168.1.0/24 is 500M. Then use the per-IP traffic limiting to ensure that the server bandwidth is 1M.

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Question # 24

The firewall device defends against the SYN Flood attack by using the technology of source legality verification. The device receives the SYN packet and sends the SYN-ACK probe packet to the source IP address host in the SYN packet. If the host exists, it will Which message is sent?

RST message

FIN message

ACK message

SYN message

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