ISC Infrastructure And System Security Practice Question
What is the primary function of an EDR (Endpoint Detection and Response) tool compared to traditional Antivirus?
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
✓
To provide visibility and response to suspicious behavioral activity.
EDR focuses on continuous monitoring and recording of endpoint activities to enable investigation, threat hunting, and automated response to sophisticated threats.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To encrypt the hard drive.
Why it's wrong here
Disk encryption is handled by OS-level tools like BitLocker or FileVault.
- ✓
To provide visibility and response to suspicious behavioral activity.
Why this is correct
EDR provides behavioral analysis and response capabilities.
- ✗
To act as a personal firewall.
Why it's wrong here
Host-based firewalls manage network traffic, not endpoint behavior.
- ✗
To block known file-based malware signatures.
Why it's wrong here
This is the primary function of legacy Antivirus.
About these practice questions
One of 208 original ISC practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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 (ISC)² exam blueprint
This ISC practice question is part of Courseiva's free (ISC)² 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 ISC exam.