200-201 Security Concepts Practice Question
A security analyst is investigating an incident where an attacker successfully altered DNS records to redirect users to a fake website. Which attack occurred?
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
✓
DNS poisoning
DNS poisoning corrupts DNS resolver caches to redirect traffic to malicious sites.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ARP spoofing
Why it's wrong here
ARP spoofing targets MAC-IP mappings at Layer 2.
- ✓
DNS poisoning
Why this is correct
DNS poisoning alters DNS records to redirect traffic.
- ✗
Man-in-the-Middle
Why it's wrong here
MitM intercepts traffic, but DNS poisoning specifically corrupts DNS.
- ✗
Pharming
Why it's wrong here
Pharming often involves DNS poisoning, but DNS poisoning is the specific attack.
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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.