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Huawei HCIE-Security (Huawei Certified Internetwork Expert-Security) Sample Questions:

1. The WeChat voice (TCP) service of a site experienced a large delay, and the delay reached 3 seconds. As its egress NAT gateway, the firewall is configured with easy-ip nat mode (single egress), with link state detection disabled, TCP aging time of 30 seconds, small business traffic, and nearly 50,000 sessions to the voice server. Through the session, you can see a large number of packets of one-way access to the voice server.
What is the correct cause and solution for this failure?

A) If there is no inconsistency between the round-trip paths on the link, you can enable the link status detection function, and the aging time is default, which can solve this problem.
B) The aging time of the TCF session is too short, and it takes time for the firewall to create a new session.
C) The solution could increase the TCP aging time to 600 seconds.
D) After the firewall session is aging, the port after the NAT of the new connection is inconsistent with the port used to establish the connection with the server, resulting in no response from the server. The client needs to re-establish the connection after timeout before sending data.

2. Which of the following options is not part of the visitor management process?

A) The account is automatically offline
B) Account Approval
C) Account authorization
D) Internet Behavior Audit
E) Account Application
F) page customization

3. When configuring the address set on the firewall, the configuration command is as follows:
[sysname] ip address-set abc type object
[sysname-object-address-set-abc] address 192.168.1.1 0
[sysname-object-address-set-abc] address 192.168.2.0 mask 24
The following descriptions are correct:

A) address 192.168.2.0 mask 24 can be replaced with the command address 192.168.2.0 0.0.0.255.
B) The address set abc matches the 192.168.1.1 host and the 192.168.2.0/24 network segment.
C) The matching network segment can be added to the address set abc by nesting the address set.
D) After the address set abc is created successfully, no new address or address segment can be added directly, and an address set must be re-created.
E) The addresses in the address set must not contain or overlap each other.

4. IPsec tunnel communication is used between the headquarters and branch offices, in order to ensure the security of data transmission on the Internet. The administrator uses the dual-system hot backup function to improve the reliability of the communication between the headquarters and the branch offices, so as to avoid the failure of one USG in the headquarters and the failure of the branch offices to access the headquarters.
According to the following network diagram, which of the following statements is correct?

A) Only IPsec dual-system hot backup in active/standby backup mode can be used.
B) USG A , USG_B must enable NAT traversal.
C) Only ESP and Tunnel mode encapsulation can be used.
D) USG A , USG_B and USG_C only need to configure the route of the Internet, and there is no need to configure the route between the branch intranet and the headquarters intranet in USG_A , USG_B and USG_C.

5. When using the SSL VPN network extension function, the virtual IP address pool can be set to the same network segment as the IP address of the internal network interface of the device.
If the virtual IP address pool and the IP address of the intranet interface are not in the same network segment, manually configure the route to the address pool on the device, the outgoing interface is the intranet interface, and the next hop is the next hop of the intranet interface.

A) TRUE
B) FALSE

Solutions: