CAS-004 Security Operations Practice Question
A security analyst is investigating a phishing campaign targeting the organization. The threat intelligence team has provided indicators such as email subject lines, sender domains, and attachment hashes. However, the analyst notices that these IOCs change rapidly and are only effective for a short period. Which type of threat intelligence would provide more durable and actionable information for defending against this campaign?
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
✓
TTP-based threat intelligence
TTP-based intelligence focuses on the adversary's behavior, such as tactics, techniques, and procedures, which are more stable over time compared to fast-changing IOCs like hashes and domains. This aligns with the ATT&CK framework.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
STIX/TAXII feeds
Why it's wrong here
STIX/TAXII is a format for sharing threat intelligence, not a type of intelligence.
- ✗
IoC-based threat intelligence
Why it's wrong here
IoC-based intelligence is ephemeral and changes quickly, as described.
- ✓
TTP-based threat intelligence
Why this is correct
TTPs describe adversary behavior and are more durable than IOCs.
- ✗
Strategic threat intelligence
Why it's wrong here
Strategic intelligence is high-level and for executives, not typically used for immediate defense.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.