- A
Enable Always Encrypted for the credit card columns with keys stored in Azure Key Vault. Keep SQL authentication but require users to use MFA via a VPN. Enable TDE for at-rest encryption.
Why wrong: SQL authentication does not support MFA directly; VPN does not enforce MFA for database access.
- B
Enable Transparent Data Encryption (TDE) with a customer-managed key in Azure Key Vault. Configure Azure SQL Auditing to send logs to Log Analytics. Enable Microsoft Defender for SQL.
Why wrong: TDE encrypts at rest but not in transit, and does not encrypt credit card numbers separately.
- C
Use Dynamic Data Masking to mask credit card numbers. Enable TDE and use Azure SQL Auditing with a storage account. Enable Microsoft Defender for SQL.
Why wrong: Dynamic Data Masking does not encrypt data; TDE does not encrypt in transit.
- D
Enable Always Encrypted for the credit card columns using Azure Key Vault Managed HSM for column master keys. Switch to Microsoft Entra ID authentication and configure Conditional Access policy to require MFA for administrators. Enable Microsoft Defender for SQL with anomaly detection and automatic blocking. Enable Azure SQL Auditing with Log Analytics destination.
Always Encrypted encrypts data at rest and in transit; Entra ID with MFA meets authentication; Defender for SQL detects and blocks anomalies; Auditing sends to Log Analytics.
Quick Answer
The correct answer is to enable Always Encrypted for the credit card columns using Azure Key Vault Managed HSM, switch to Microsoft Entra ID authentication with a Conditional Access policy requiring MFA, enable Microsoft Defender for SQL with geographic anomaly blocking, and configure Azure SQL Auditing with a Log Analytics destination. This solution directly meets all security mandates because Always Encrypted with Managed HSM ensures credit card data is encrypted both at rest and in transit using customer-controlled hardware security module keys, while Microsoft Defender for SQL’s anomaly detection automatically blocks access from unusual locations for 24 hours. On the DP-300 exam, this question tests your ability to integrate multiple Azure security services—Always Encrypted, Managed HSM, Conditional Access, Defender for SQL, and Auditing—into a cohesive, low-downtime solution. A common trap is choosing Transparent Data Encryption (TDE) alone, which does not encrypt data in transit or provide client-side key control. Memory tip: “Always Encrypted for columns, Managed HSM for keys, Defender for blocking, and Log Analytics for logs.”
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 the database administrator for a large e-commerce company. The company has an Azure SQL Database named SalesDB that stores sensitive customer data including credit card numbers and personal details. The security team has mandated the following requirements:
1. All customer credit card numbers must be encrypted at rest and in transit between the application and the database. The encryption keys must be stored in a hardware security module (HSM) managed by the company. 2. All access to the database must be authenticated using Microsoft Entra ID, and multi-factor authentication (MFA) must be enforced for all administrative users. 3. Any attempts to access the database from unusual geographic locations must be detected and automatically blocked for 24 hours. 4. All schema changes must be audited, and the audit logs must be sent to a central Log Analytics workspace for analysis.
Currently, the database uses SQL authentication, no encryption, and no auditing. You need to implement the required security controls with minimal downtime. What should you do?
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 Always Encrypted for the credit card columns using Azure Key Vault Managed HSM for column master keys. Switch to Microsoft Entra ID authentication and configure Conditional Access policy to require MFA for administrators. Enable Microsoft Defender for SQL with anomaly detection and automatic blocking. Enable Azure SQL Auditing with Log Analytics destination.
Option D is correct because it directly addresses all mandated requirements: Always Encrypted with Azure Key Vault Managed HSM ensures credit card numbers are encrypted at rest and in transit with customer-managed HSM keys; switching to Microsoft Entra ID authentication with a Conditional Access policy enforces MFA for administrators; Microsoft Defender for SQL provides anomaly detection that can automatically block access from unusual geographic locations for 24 hours; and Azure SQL Auditing configured to send logs to Log Analytics meets the central audit requirement. This combination provides the required security controls with minimal downtime as Always Encrypted can be enabled online.
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 Always Encrypted for the credit card columns with keys stored in Azure Key Vault. Keep SQL authentication but require users to use MFA via a VPN. Enable TDE for at-rest encryption.
- ✗
Enable Transparent Data Encryption (TDE) with a customer-managed key in Azure Key Vault. Configure Azure SQL Auditing to send logs to Log Analytics. Enable Microsoft Defender for SQL.
Why it's wrong here
TDE encrypts at rest but not in transit, and does not encrypt credit card numbers separately.
- ✗
Use Dynamic Data Masking to mask credit card numbers. Enable TDE and use Azure SQL Auditing with a storage account. Enable Microsoft Defender for SQL.
Why it's wrong here
Dynamic Data Masking does not encrypt data; TDE does not encrypt in transit.
- ✓
Enable Always Encrypted for the credit card columns using Azure Key Vault Managed HSM for column master keys. Switch to Microsoft Entra ID authentication and configure Conditional Access policy to require MFA for administrators. Enable Microsoft Defender for SQL with anomaly detection and automatic blocking. Enable Azure SQL Auditing with Log Analytics destination.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Transparent Data Encryption (TDE) with Always Encrypted, assuming TDE alone satisfies encryption at rest and in transit, but TDE only protects data at rest and does not encrypt data in transit or provide client-side encryption for sensitive columns like credit card numbers.
Detailed technical explanation
How to think about this question
Always Encrypted uses a two-tier key hierarchy: a column master key (CMK) stored in Azure Key Vault Managed HSM (FIPS 140-2 Level 3 validated) and column encryption keys (CEKs) that are encrypted by the CMK. The client driver encrypts and decrypts data locally, ensuring data is never exposed in plaintext to the database engine, which provides encryption both at rest and in transit. Microsoft Defender for SQL's anomaly detection leverages machine learning to profile baseline access patterns and can trigger an automatic IP firewall rule to block suspicious IPs for 24 hours, satisfying the geographic location requirement.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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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 Always Encrypted for the credit card columns using Azure Key Vault Managed HSM for column master keys. Switch to Microsoft Entra ID authentication and configure Conditional Access policy to require MFA for administrators. Enable Microsoft Defender for SQL with anomaly detection and automatic blocking. Enable Azure SQL Auditing with Log Analytics destination. — Option D is correct because it directly addresses all mandated requirements: Always Encrypted with Azure Key Vault Managed HSM ensures credit card numbers are encrypted at rest and in transit with customer-managed HSM keys; switching to Microsoft Entra ID authentication with a Conditional Access policy enforces MFA for administrators; Microsoft Defender for SQL provides anomaly detection that can automatically block access from unusual geographic locations for 24 hours; and Azure SQL Auditing configured to send logs to Log Analytics meets the central audit requirement. This combination provides the required security controls with minimal downtime as Always Encrypted can be enabled online.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on DP-300
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. You are a database administrator for a manufacturing company that uses Azure SQL Database. The company has a requirement to encrypt sensitive data in transit between the application and the database. Additionally, the company wants to ensure that database administrators (DBAs) cannot view the sensitive data. Which TWO features should you implement?
hard- A.Implement row-level security (RLS) to filter rows
- B.Enable transparent data encryption (TDE) on the database
- ✓ C.Configure the server to enforce TLS 1.2 by setting the 'Minimal TLS Version' property
- D.Implement dynamic data masking on sensitive columns
- ✓ E.Use Always Encrypted with a column master key stored in Azure Key Vault
Why C: Options A and E are correct. Option A enforces TLS 1.2 for data in transit. Option E uses Always Encrypted with a column master key stored in Azure Key Vault, which prevents DBAs from accessing the encryption keys and thus the sensitive data. Option B is wrong because TDE encrypts data at rest but does not protect data in transit or from DBAs. Option C is wrong because dynamic data masking can be bypassed by DBAs with elevated permissions. Option D is wrong because row-level security does not encrypt data.
Last reviewed: Jun 24, 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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