200-201 Network Intrusion Analysis Practice Question
An analyst detects HTTPS traffic to a domain that was registered only 24 hours ago and has no web content. The traffic occurs at odd hours and with consistent packet sizes. What technique is likely being used for C2?
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
✓
HTTPS beaconing to a malicious domain
Attackers often use newly registered domains (DGAs or manually registered) for C2 to avoid blacklists. HTTPS provides encryption to hide the beaconing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DNS tunneling
Why it's wrong here
DNS tunneling uses DNS queries, not HTTPS.
- ✓
HTTPS beaconing to a malicious domain
Why this is correct
HTTPS to a suspicious domain is common C2.
- ✗
HTTP POST exfiltration
Why it's wrong here
Exfiltration is for data theft, not C2.
- ✗
Domain Generation Algorithm (DGA)
Why it's wrong here
DGA generates many domains, but the domain is already registered.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-201 practice question is part of Courseiva's free Cisco 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 200-201 exam.