312-85 Threat Hunting And Detection Practice Question
To effectively hunt for C2 communication, which THREE indicators should be monitored in your proxy or firewall logs?
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
✓
High frequency of connections (beaconing)
Unusual User-Agents, connection frequency, and destination domain age are critical indicators of C2 infrastructure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
High frequency of connections (beaconing)
Why this is correct
Consistent heartbeats indicate automated C2.
- ✓
Domain age of destination
Why this is correct
C2 infrastructure is often stood up very recently.
- ✗
Traffic volume spikes
Why it's wrong here
Spikes are usually associated with exfiltration, not heartbeat C2.
- ✗
TCP Window size changes
Why it's wrong here
TCP parameters fluctuate based on congestion, not C2 intent.
- ✓
User-Agent consistency
Why this is correct
Beacons often use hardcoded, non-standard user agents.
About these practice questions
Courseiva writes every 312-85 question from scratch — 195 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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 EC-Council exam blueprint
This 312-85 practice question is part of Courseiva's free EC-Council 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 312-85 exam.