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SSCP Practice Question: Which TWO of the following are types of intrusion…

Which TWO of the following are types of intrusion detection systems (IDS) based on the detection method?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Anomaly-based IDS

The two types of IDS based on detection method are anomaly-based (detects deviations from normal behavior) and signature-based (matches known attack patterns). Host-based and network-based are types based on deployment location, not detection method. Rule-based is often considered a subtype of signature-based detection. Therefore, options A (Anomaly-based) and D (Signature-based) are correct.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✓

    Anomaly-based IDS

    Why this is correct

    Detects deviations from baseline behavior.

  • ✗

    Host-based IDS

    Why it's wrong here

    This is a deployment type.

  • ✗

    Rule-based IDS

    Why it's wrong here

    Rule-based is a technique within signature-based, not a separate detection method.

  • ✓

    Signature-based IDS

    Why this is correct

    Detects known attack patterns via signatures.

  • ✗

    Network-based IDS

    Why it's wrong here

    This is a deployment type, not a detection method.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This SSCP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SSCP exam.