DP-300 Implement a secure environment Practice Question
You are a database administrator for a bank that uses Azure SQL Database to store transaction data. The compliance team requires that you implement a solution to encrypt data at rest and in transit. Additionally, the solution must allow the database to be restored to any point in time within the last 35 days. Which TWO actions should you take?
⚠ Common exam trap
It's easy for candidates to confuse dynamic data masking or Always Encrypted with encryption at rest, failing to recognize that TDE is the primary Azure SQL Database feature for encrypting the entire database at rest, while PITR retention is a separate backup configuration that must be explicitly set to meet the 35-day requirement.
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
✓
Enable transparent data encryption (TDE) on the database
Transparent Data Encryption (TDE) encrypts the database at rest, including backups and transaction log files, which satisfies the compliance requirement for data at rest. TDE is a built-in feature of Azure SQL Database that requires no application changes and is enabled at the database level.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable Microsoft Defender for SQL
Why it's wrong here
Microsoft Defender for SQL provides security monitoring and threat detection, not encryption or backup.
- ✗
Implement dynamic data masking on sensitive columns
Why it's wrong here
Dynamic data masking obfuscates data but does not encrypt it.
- ✗
Enable Always Encrypted for all columns containing sensitive data
Why it's wrong here
Always Encrypted encrypts data in transit between client and server, but it is not required for data at rest or for PITR. It also requires application changes.
- ✓
Enable transparent data encryption (TDE) on the database
Why this is correct
TDE encrypts data at rest, including backups and transaction log files.
- ✓
Configure the point-in-time restore (PITR) retention period to 35 days
Why this is correct
PITR allows restoring the database to any point within the retention period.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Transparent Data Encryption
Transparent Data Encryption is a security feature that automatically encrypts data written to a database and decrypts it when read, without requiring any changes to the application.
Key term
Azure SQL Performance Tuning
Azure SQL Performance Tuning is the process of optimizing the speed and efficiency of queries and database operations in Microsoft Azure SQL Database or SQL Managed Instance to reduce latency and improve throughput.
About these practice questions
This DP-300 question is part of Courseiva's 906-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. 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-300 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-300 exam.