ISC Security Planning And Engineering Practice Question
Which THREE actions should be taken when decommissioning an information system to ensure data security?
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
✓
Remove the system from the network and inventory.
Clearing or purging the storage media, destroying the media if necessary, and auditing the decommissioning logs are key steps.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Archive all data to a public cloud bucket.
Why it's wrong here
Archiving without security controls is a major risk.
- ✓
Remove the system from the network and inventory.
Why this is correct
Ensures no lingering access or ghost assets.
- ✓
Sanitize or destroy the storage media.
Why this is correct
Required to prevent data recovery.
- ✓
Update the organizational asset inventory.
Why this is correct
Crucial for maintaining accurate records and compliance.
- ✗
Format the hard drive as a quick process.
Why it's wrong here
Standard formatting is not secure; forensic recovery is possible.
About these practice questions
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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.