CAS-004 Security Operations Practice Question
A security operations center (SOC) is implementing User Behavior Analytics (UBA) to detect insider threats. Which TWO of the following data sources are most critical for establishing a baseline of normal user behavior?
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
✓
Authentication logs from Active Directory
UBA relies on authentication logs to understand login patterns and network traffic logs to understand communication patterns. HR records and email content are less relevant for technical baselines; threat feeds are external.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Authentication logs from Active Directory
Why this is correct
Authentication logs track login times, locations, and failures.
- ✗
Threat intelligence feeds
Why it's wrong here
Threat feeds provide external threat data, not user baselines.
- ✓
Network traffic logs from firewalls and proxies
Why this is correct
Network logs show data access and communication patterns.
- ✗
HR records of employee performance reviews
Why it's wrong here
Performance reviews are not technical behavior data.
- ✗
Email content and subject lines
Why it's wrong here
Email content is not typically used for baselines due to privacy.
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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.