Which of the following types of attacks are DDoS attacks? 2I

• A.Snooping scan attack
• B.Malformed message attack
• C.Single packet attack
• D.Floating child attack

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

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If you combine security defense with big data technology, which of the following statements are correct?
(multiple choice)

• A.Security source data can come from many places, including data streams, messages, threat events, logs, etc.
• B.Machine learning only counts a large number of samples, which is convenient for security administrators to view.
• C.In the learning process, you should start from collecting samples, analyze their characteristics and then perform machine learning.
• D.In the detection process, the characteristics of unknown samples need to be extracted and calculated to provide samples for subsequent static comparisons.

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When the Anti DDoS system finds the attack flow, the state will redirect the attack flow to the cleaning device.
After the cleaning device is cleaned, it will flow back.
Note to the original link, which of the following options does not belong to the method of re-injection?

• A.GRE back note:
• B.BGP back-annotation
• C.Policy routing back annotation,
• D.MPLS LSP back injection

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The analysis and processing capabilities of traditional firewalls at the application layer are weak, and they cannot correctly analyze malicious codes that are mixed in the flow of allowed application teaching: many Attacks or malicious behaviors often use the firewall's open application data flow to cause damage, causing application layer threats to penetrate the firewall.

• A.True
• B.False

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