DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
You are designing a data lake architecture using Azure Data Lake Storage Gen2. Sensitive customer data must be encrypted at rest using customer-managed keys stored in Azure Key Vault. Additionally, access must be audited at the file level. Which combination of features should you implement?
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
✓
Customer-managed keys (CMK) in Azure Key Vault and Azure Storage analytics logs
Customer-managed keys (CMK) in Azure Key Vault provide encryption at rest with customer-controlled keys, and Azure Storage analytics logs (or diagnostic settings) capture file-level audit events such as read and write operations. Option A is incorrect because Azure AD authentication controls access but does not provide encryption at rest. Option B is incorrect because Azure Information Protection is a classification and labeling solution, not an encryption mechanism for data at rest. Option D is incorrect because service-managed keys do not give customer control over encryption, and Azure Monitor alerts are for notifications, not audit logging.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Azure AD authentication and Azure Storage firewall
Why it's wrong here
Does not provide encryption at rest
- ✗
Azure Information Protection labels and Azure Policy
Why it's wrong here
Labels do not encrypt at rest
- ✓
Customer-managed keys (CMK) in Azure Key Vault and Azure Storage analytics logs
Why this is correct
CMK provides encryption at rest, analytics logs provide audit
- ✗
Service-managed keys and Azure Monitor alerts
Why it's wrong here
Service-managed keys do not provide customer control
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-203 practice question is part of Courseiva's free Microsoft 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 DP-203 exam.