- A
Enable Microsoft Defender for SQL
Why wrong: Microsoft Defender for SQL provides security monitoring and threat detection, not encryption or backup.
- B
Implement dynamic data masking on sensitive columns
Why wrong: Dynamic data masking obfuscates data but does not encrypt it.
- C
Enable Always Encrypted for all columns containing sensitive data
Why wrong: 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.
- D
Enable transparent data encryption (TDE) on the database
TDE encrypts data at rest, including backups and transaction log files.
- E
Configure the point-in-time restore (PITR) retention period to 35 days
PITR allows restoring the database to any point within the retention period.
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
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?
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
Option D is correct because 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.
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.
- ✗
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.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
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.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often 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.
Detailed technical explanation
How to think about this question
TDE in Azure SQL Database uses a database encryption key (DEK) stored in the database boot record, which is protected by a server-level certificate or an Azure Key Vault asymmetric key. The encryption operates at the page level, meaning data is encrypted as it is written to disk and decrypted when read into memory, providing transparent encryption without application modifications. Point-in-time restore (PITR) retention is configured separately via the Azure portal or T-SQL, with a maximum of 35 days for Azure SQL Database, and it relies on transaction log backups that are also encrypted when TDE is enabled.
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.
TExam Day Tips
- 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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this DP-300 question test?
Implement a secure environment — This question tests Implement a secure environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable transparent data encryption (TDE) on the database — Option D is correct because 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.
What should I do if I get this DP-300 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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.
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