DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
You need to ensure that sensitive data stored in Azure SQL Database is encrypted at rest. Which feature should you enable?
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
✓
Transparent Data Encryption (TDE)
Transparent Data Encryption (TDE) is correct because it encrypts the entire database at rest, including backups and log files. Option A (Always Encrypted) is incorrect because it encrypts data in use and in transit (client-side encryption), not at rest. Option B (Azure Information Protection) is incorrect because it is a classification and labeling service, not an encryption mechanism. Option C (Dynamic Data Masking) is incorrect because it masks data in query results to unauthorized users, but does not encrypt the underlying data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Always Encrypted
Why it's wrong here
Always Encrypted encrypts sensitive data in transit and in use, but not at rest.
- ✗
Azure Information Protection
Why it's wrong here
Azure Information Protection is a classification and labeling solution, not a database encryption feature.
- ✗
Dynamic Data Masking
Why it's wrong here
Dynamic Data Masking obfuscates data in query results but does not encrypt data at rest.
- ✓
Transparent Data Encryption (TDE)
Why this is correct
TDE performs real-time encryption and decryption of the database, backups, and transaction log files at rest.
Go deeper
Related to this question
Learn chapter
Introduction to Azure Data Engineering
Key term
Dynamic Data Masking
Dynamic Data Masking is a security feature that automatically hides sensitive data in query results so that unauthorized users see only masked information, while authorized users see the real data.
Key term
Azure Data Masking
Azure Data Masking is a security feature that hides sensitive data in database query results by replacing it with obscured characters, so unauthorized users see a blurred version instead of the real information.
About these practice questions
One of 760 original DP-203 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
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.