CV0-004 Security Practice Question
A security administrator is deploying a web application firewall (WAF) to protect a public-facing web application. The application experiences a high volume of traffic from a specific geographic region that is not part of the target customer base. Which WAF feature would best reduce the attack surface without impacting legitimate users?
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
✓
Geo-blocking
Geo-blocking allows the administrator to block traffic from specific regions, reducing the attack surface by eliminating traffic from non-target areas.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IP whitelisting
Why it's wrong here
IP whitelisting allows only specific IPs, which is too restrictive for a global web app.
- ✗
Rate limiting
Why it's wrong here
Rate limiting controls request frequency but does not block by geography.
- ✗
OWASP rule set
Why it's wrong here
OWASP rules protect against common web vulnerabilities, not geographic filtering.
- ✓
Geo-blocking
Why this is correct
Geo-blocking blocks or allows traffic based on geographic location.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 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 CV0-004 exam.