CCSP Cloud Data Security Practice Question
A cloud security engineer needs to de-identify a dataset containing credit card numbers before sharing it with a third-party analytics team. The engineer wants to replace each credit card number with a unique token that can be used for correlation but cannot be reversed to obtain the original number. Which de-identification technique should be used?
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
✓
Tokenization
Tokenization replaces sensitive data with a non-reversible token, preserving the ability to correlate records without exposing the original values.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Tokenization
Why this is correct
Tokenization provides a non-reversible substitute for the original data.
- ✗
Pseudonymisation
Why it's wrong here
Pseudonymisation can be reversible with proper mapping.
- ✗
Masking
Why it's wrong here
Masking partially hides data but may still be reversible.
- ✗
Bucketing
Why it's wrong here
Bucketing generalizes data into ranges, not suitable for unique IDs.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.