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Huawei HCIA-Security V4.0 Sample Questions:

1. Which of the following statements are correct about SYN flood attack defense technologies on Huawei firewalls?

A) Interzone security policies can be configured to defend against SYN flood attacks.
B) SYN cookie technology can be used to defend against SYN flood attacks.
C) The TCP connection establishment rate can be limited to defend against SYN flood attacks.
D) The number of half-open TCP connections can be limited to defend against SYN flood attacks.

2. The IPS detects and analyzes all packets passing through a device and determines whether to permit or block the packets in real time based on the comprehensive detection mechanism. Sort the following steps into the correct order based on the basic implementation mechanism of the IPS.

3. When using passive mode to establish an FTP connection, the control channel uses port 20 and the data channel uses port 21.

A) True
B) False

4. What is the protocol number of the GRE protocol?

A) 48
B) 47
C) 46
D) The 50th

5. Database operation records can be used as ___ evidence to backtrack security events.

Solutions: