CDPSE Privacy Engineering Practice Question
In a database, you need to replace social security numbers with a consistent, non-reversible value for analytics. What is the best approach?
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
✓
Salted one-way hashing
Salted hashing produces a consistent value that is non-reversible, ideal for analytics without needing to recover the original ID.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Salted one-way hashing
Why this is correct
Hashing is one-way, and the salt prevents rainbow table attacks.
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Deterministic encryption
Why it's wrong here
Encryption is reversible.
- ✗
Format-preserving encryption
Why it's wrong here
This is also reversible.
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Randomized tokenization
Why it's wrong here
Tokenization typically uses a vault to reverse the value.
About these practice questions
Courseiva writes every CDPSE question from scratch — 215 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 ISACA exam blueprint
This CDPSE 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 CDPSE exam.