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Incident Detection And ResponsemediumMultiple ChoiceObjective-mapped

CCOA Incident Detection And Response Practice Question

You are managing an incident where an adversary is utilizing a 'Living off the Land' (LotL) technique. Which log source is most critical to detect this activity?

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

Process creation logs (e.g., Sysmon Event ID 1)

LotL attacks use legitimate system tools like PowerShell or WMI; therefore, process execution logs with command-line arguments are essential.

Answer analysis

Option-by-option breakdown

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

  • Firewall denied logs

    Why it's wrong here

    LotL activity often mimics authorized traffic.

  • Physical access logs

    Why it's wrong here

    This does not reveal system-level execution.

  • SMTP gateway logs

    Why it's wrong here

    SMTP logs show email content, not process execution.

  • Process creation logs (e.g., Sysmon Event ID 1)

    Why this is correct

    Event ID 1 records the full command line, revealing the execution of native tools.

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JA

Written and reviewed by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

Last reviewed August 2026 · checked against the official ISACA exam blueprint

This CCOA practice question is part of Courseiva's free ISACA 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 CCOA exam.