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Huawei HCIA-Security V3.0 Sample Questions:

1. Which of the following descriptions of the firewall log is wrong?

A) According to the severity level or urgency of the information. The log can be divided into 8 levels. The more serious the information, the greater the log level value.
B) Alert log level indicates a major abnormality of the device, requiring immediate action
C) The ebug log level indicates that it is general information about the normal operation of the device, and the user does not need to pay attention
D) The log level Emergency is the most severe level

2. About disconnectTCPIn the description of the connection four-way handshake, which of the following is false?

A) The active closing party sends the firstFINperform an active shutdown while the other party receives thisFINexecution is closed
B) The passive closing party needs to pass an end-of-file to the application, the application closes its connection, and causes the sending of an end-of-fileFIN
C) Sent on passive shutdown sideFINAfter that, the active closing party must send back an acknowledgment and set the acknowledgment sequence number to the received sequence number plus1
D) When passive shutdown receives the firstFIN, it will send back aACK, and randomly generate the confirmation serial number.

3. EuropeTCSECThe guidelines are divided into two modules, functional and evaluation, and are mainly used in the military, government and commercial fields

A) False
B) True

4. Which of the following are multi-user operating systems? (multiple choice)

A) MSDOS
B) UNIX
C) LINUX
D) Windows

5. Which of the following is false for a description of an intrusion detection system?.

A) Intrusion detection system can collect a large amount of key information dynamically through network and computer.And can analyze and judge the current state of the entire system environment in time
B) Once the intrusion detection system finds that there is a behavior that violates the security policy or the system has traces of being attacked, it can implement blocking operations.
C) The immersion detection system can be linked with firewalls and switches, making it a powerful tool for firewalls"assistant", better and more precise control of traffic access between domains
D) Intrusion detection system includes all hardware and software systems used for intrusion detection

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