CDPSE Privacy Engineering Practice Question
You are configuring an API gateway to implement 'Data Minimization' via response filtering. How is this typically achieved for JSON payloads?
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
✓
By implementing field-level response transformation
Response transformation or JSON schema validation allows the gateway to strip sensitive fields from the response body before it reaches the client.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
By using TLS 1.3 encryption
Why it's wrong here
TLS secures transit, not the content of the payload.
- ✗
By increasing the request timeout
Why it's wrong here
Timeout settings are irrelevant to data minimization.
- ✓
By implementing field-level response transformation
Why this is correct
This acts as a filter to remove specific keys from the JSON payload at the gateway level.
- ✗
By modifying the backend database schema
Why it's wrong here
Changing the database does not filter the API response.
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 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.