CCOA Incident Detection And Response Practice Question
A user reports they cannot access a shared drive following a suspected ransomware infection. What is the immediate containment action according to standard incident response best practices?
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
✓
Isolate the host from the network
Isolating the affected host from the network prevents the ransomware from spreading to other shares or command-and-control servers while preserving local evidence.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Isolate the host from the network
Why this is correct
The primary first step for containment of potential malware propagation.
- ✗
Reboot the server
Why it's wrong here
May clear volatile memory evidence.
- ✗
Delete the suspicious files
Why it's wrong here
Destroys potential evidence needed for forensics.
- ✗
Change all user passwords
Why it's wrong here
Important for recovery, but not the first step for containment.
About these practice questions
One of 203 original CCOA 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 ISACA exam blueprint
This CCOA practice question is part of Courseiva's free ISACA 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 CCOA exam.