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CAS-004 Practice Question: Needs to demonstrate compliance with the General…
An organization needs to demonstrate compliance with the General Data Protection Regulation (GDPR) for processing personal data of EU citizens. Which of the following is a mandatory requirement under GDPR?
⚠ Common exam trap
Candidates often confuse the specific GDPR requirements, such as assuming that explicit consent is always required or that breach notification must occur within 24 hours, when in fact the correct mandatory requirement is data protection by design and default under Article 25.
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
✓
Implement data protection by design and default
Article 25 of the GDPR mandates data protection by design and default, requiring organizations to integrate data protection measures into processing activities and business practices from the outset. This includes pseudonymization, data minimization, and ensuring that only necessary personal data is processed by default. It is a mandatory, proactive requirement that applies to all controllers, regardless of the legal basis for processing.
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 for all data processing
Why it's wrong here
Other lawful bases besides consent exist.
- ✗
Notify supervisory authority of a breach within 24 hours
Why it's wrong here
GDPR requires notification within 72 hours.
- ✓
Implement data protection by design and default
Why this is correct
GDPR requires data protection by design and default.
- ✗
Store all personal data within the EU
Why it's wrong here
Data localization is not mandatory; adequate safeguards can be used.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.