212-89 Malware Incidents Practice Question
After eradicating a malware infection, you need to ensure the system is hardened against future occurrences. Which action is most effective against fileless malware?
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
✓
Implement PowerShell Constrained Language Mode
Disabling PowerShell for non-administrative users or implementing Constrained Language Mode is a key defense against fileless script-based attacks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Implement PowerShell Constrained Language Mode
Why this is correct
This restricts the ability of malicious scripts to call sensitive APIs.
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Enable auto-updates for all applications
Why it's wrong here
While good practice, it doesn't specifically target fileless techniques.
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Install an extra antivirus
Why it's wrong here
Running multiple AV solutions often causes system instability.
- ✗
Enable full disk encryption
Why it's wrong here
Encryption protects against physical theft, not fileless code execution.
About these practice questions
Courseiva writes every 212-89 question from scratch — 206 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. 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 EC-Council exam blueprint
This 212-89 practice question is part of Courseiva's free EC-Council 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 212-89 exam.