What IDS approach relies on a database of known attacks?

The correct answer is A. Signature-based intrusion detection. A weakness of the signature-based (or knowledge-based) intrusion detection approach is that only attack signatures that are stored in a database are detected. Network-based intrusion detection can either be signature-based or statistical anomaly-based (also called behavior

Submitted by tarun92· Apr 18, 2026Network and Communications Security

Question

Options

ASignature-based intrusion detection
BStatistical anomaly-based intrusion detection
CBehavior-based intrusion detection
DNetwork-based intrusion detection

How the community answered

(35 responses)

A
89% (31)
B
3% (1)
C
6% (2)
D
3% (1)

Explanation

A weakness of the signature-based (or knowledge-based) intrusion detection approach is that only attack signatures that are stored in a database are detected. Network-based intrusion detection can either be signature-based or statistical anomaly-based (also called behavior

Topics

#Intrusion Detection Systems (IDS)#Signature-based IDS#Network Security#Security Monitoring

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