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

1. Using the SSL function of the USG gateway, the administrator can quickly and securely access all resources in the enterprise intranet, not only Web resources, and ensure that the communication between the client and the virtual gateway adopts the SSL security protocol, and the SSL client must ensure that the Without affecting access to other network resources, you can directly access Internet resources.

A) Network extension in split mode
B) Network expansion in full routing mode
C) Network extension in manual mode
D) port forwarding

2. 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) The solution could increase the TCP aging time to 600 seconds.
B) 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.
C) The aging time of the TCF session is too short, and it takes time for the firewall to create a new session.
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.

3. Regarding the firewall IP-Link feature, the following description is incorrect:

A) The firewall continuously sends ARP request packets to the target network segment, and when it receives ARP response packets, it considers the link to be normal.
B) The firewall continuously sends ICMP packets to the specified destination address, and if no ICMP echo reply is received for 3 seconds (default), the link is considered to be faulty.
C) The ICMP detection method can be used to detect the reliability of chromium paths across network segments.
D) ARP detection mode only supports detection of direct links.

4. The firewall single sign-on authentication process as shown in the figure includes the following main links:
a. Find user group information on AD server
b. The device has created an online user list, and the user directly accesses external resources
c. Send information such as username and group to the device
d. User requests authentication
e. Actively send a message to the AD monitoring service (username, user IP address)
f . Server authentication passed
Please select the correct correspondence between letters and numbers ?

A) ① -> d ② -> e ③ -> d ④ -> f ⑤ -> C ⑥ -> b
B) ① -> d ② -> f ③ -> d ④ -> e ⑤ -> C ⑥ -> b
C) ① -> d ② -> e ③ -> f ④ -> a ⑤ -> C ⑥ -> b
D) ① -> d ② -> f ③ -> e ④ -> d ⑤ -> C ⑥ -> b

5. According to the "GB/T 22240-2008 Information Security Technology Information System Security Level Protection Grading Guide", information systems are divided into five levels according to different levels, of which the protection capabilities of the five levels include:

A) Resources that can protect the system from malicious attacks, severe natural disasters, and other threats of considerable severity from national-level, hostile organizations, and resource-rich threat sources under a unified security strategy Damage, can find security breaches and security incidents, after the system is damaged, can quickly restore all functions.
B) It can protect the system from malicious attacks from external organized groups, threat sources with relatively rich resources, serious natural disasters, and other major threats caused by relatively harmful threats under a unified security strategy. Resource damage can find security loopholes and security incidents, and after the system is damaged, most functions can be restored.
C) Able to protect the system from malicious attacks from external small organizations, threat sources with few resources, general natural disasters, and other threats of considerable damage to important resources, and to discover important security Vulnerabilities and security incidents, after the system is compromised, can restore some functions for a period of time.
D) undefined

Solutions: