CAS-004 Governance, Risk and Compliance Practice Question
This CAS-004 practice question tests your understanding of governance, risk and compliance. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is developing a new mobile app that will process users' biometric data for authentication. The legal team is concerned about compliance with the GDPR's data protection by design. Which of the following is the MOST appropriate control to implement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Conduct a Data Protection Impact Assessment (DPIA) before development.
D is correct. A DPIA is required by GDPR for high-risk processing like biometrics. Consent is important but does not replace the DPIA. Encryption is a technical control but the DPIA is foundational for 'by design'.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Obtain explicit consent from users before data collection.
Why it's wrong here
Consent is required but does not fulfill the broader 'data protection by design' requirement.
✗
Store biometric data in hashed form on the device.
Why it's wrong here
Hashing biometric data is a technical control but not the most appropriate for 'by design' principle.
✗
Implement strong encryption for data in transit and at rest.
Why it's wrong here
Encryption is necessary but not sufficient; the DPIA should come first.
✓
Conduct a Data Protection Impact Assessment (DPIA) before development.
Why this is correct
DPIA is mandated for high-risk processing and is a key part of data protection by design.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CAS-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which CAS-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Governance, Risk and Compliance — This question tests Governance, Risk and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Conduct a Data Protection Impact Assessment (DPIA) before development. — D is correct. A DPIA is required by GDPR for high-risk processing like biometrics. Consent is important but does not replace the DPIA. Encryption is a technical control but the DPIA is foundational for 'by design'.
What should I do if I get this CAS-004 question wrong?
Identify which CAS-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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