Which of the following is a network intrusion detection technique?

The correct answer is A. Statistical anomaly. Statistical anomaly is a network intrusion detection technique that compares the current network activity with a baseline of normal behavior, and detects any deviations that exceed a predefined threshold. Statistical anomaly can identify unknown or novel attacks, but it may also

Submitted by anjalisingh· Mar 5, 2026Security Operations

Question

Which of the following is a network intrusion detection technique?

Options

AStatistical anomaly
BPerimeter intrusion
CPort scanning
DNetwork spoofing

How the community answered

(24 responses)

A
92% (22)
B
4% (1)
D
4% (1)

Explanation

Statistical anomaly is a network intrusion detection technique that compares the current network activity with a baseline of normal behavior, and detects any deviations that exceed a predefined threshold. Statistical anomaly can identify unknown or novel attacks, but it may also generate false positives if the baseline is not updated or the threshold is not set properly.

Topics

#Intrusion Detection System#NIDS#statistical anomaly detection

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