Regarding scanning and snooping attacks, which of the following descriptions is wrong?

• A.Scanning attacks include address scanning and port scanning.
• B.The source address of the scanning attack is real, so it can be defended by adding direct assistance to the blacklist.
• C.It is usually the network detection behavior before the attacker launches the real attack.
• D.When a worm virus breaks out, it is usually accompanied by an address scanning attack, so scanning attacks are offensive.

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Which of the following is correct configuration strategy for anti-virus policy?
1. Load feature library
2. Configure security policy and reference AV profile
3. Apply and activate license
4. Configure AV Profile
5. Submit

• A.3 -> 1 -> 4 -> 2 -> 5
• B.3 -> 1 -> 2 -> 4 -> 5
• C.3 -> 2 -> 4 -> 1 -> 5
• D.3 -> 2 -> 1 -> 4 -> 5

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Which two of the following options use similar attack methods and generate a large number of useless reply packets, occupying network bandwidth and consuming device resources?

• A.Teardrop and Land
• B.Fraggle andLand
• C.Land and Smurf
• D.Fraggle and Smurf

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If you set the alarm policy for the SMTP virus file, which of the following options is correct?

• A.Generate logs and forward
• B.Delete email attachment content
• C.Add announcements and generate logs
• D.Generate logs and discard them

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Fraggle attack means that both the source address and the destination address of TCP are set to the IP address of a victim. This behavior will cause the victim to send a SYN-ACK message to its own address, which in turn sends back an ACK message and creates an empty connection, causing the system resources to be occupied or the destination host to crash.

• A.False
• B.True

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