The answer is to assign the key to the Azure SQL logical server and enable TDE. These two actions are required because customer-managed keys (CMK) for Transparent Data Encryption rely on an Azure Key Vault to store the key, which then protects the database encryption key (DEK) used to encrypt the data at rest. By assigning the key to the logical server, you establish the trust relationship between the SQL server and the vault, and enabling TDE activates the encryption using that key, ensuring you retain full ownership and control over the encryption material. On the DP-300 exam, this scenario tests your understanding of the separation of duties between key management and encryption activation; a common trap is thinking you must manually rotate the key in the database itself or that enabling TDE alone suffices without first assigning the key to the server. Remember the mnemonic "Assign then Enable" to avoid missing the critical first step of linking the key vault to the logical server before turning on TDE.
DP-300 Plan and implement data platform resources Practice Question
This DP-300 practice question tests your understanding of plan and implement data platform resources. 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.
Which TWO actions are required to implement transparent data encryption (TDE) with customer-managed keys for an Azure SQL Database?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create an Azure Key Vault and a key.
Option A is correct because TDE with customer-managed keys requires an Azure Key Vault to store the key, which provides centralized key management and control. The key in the vault is used to protect the database encryption key (DEK), ensuring that the customer retains ownership and control over the encryption material.
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.
✓
Create an Azure Key Vault and a key.
Why this is correct
Required for customer-managed TDE.
Related concept
Read the scenario before looking for a memorised answer.
✓
Assign the key to the Azure SQL logical server and enable TDE.
Why this is correct
Required to use customer-managed key.
Related concept
Read the scenario before looking for a memorised answer.
✗
Set the backup encryption level to 'Encrypted'.
Why it's wrong here
Optional for backups, not required for TDE.
✗
Create a server certificate in the database.
Why it's wrong here
Not required; TDE uses the key vault key.
✗
Configure column encryption keys in the database.
Why it's wrong here
Part of Always Encrypted, not TDE.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse TDE with Always Encrypted or on-premises certificate-based TDE, leading them to select options about column encryption keys or server certificates, which are not part of Azure SQL Database TDE implementation.
Detailed technical explanation
How to think about this question
TDE with customer-managed keys uses the Azure Key Vault as the key store, where the key is used to wrap the DEK stored in the database boot page. The logical server must be granted permissions (via access policies or RBAC) to access the Key Vault key, and the TDE protector is set at the server level, automatically protecting all user databases on that server. A common real-world scenario is rotating the customer-managed key in Key Vault, which triggers automatic re-encryption of the DEK without any database downtime.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
Plan and implement data platform resources — This question tests Plan and implement data platform resources — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an Azure Key Vault and a key. — Option A is correct because TDE with customer-managed keys requires an Azure Key Vault to store the key, which provides centralized key management and control. The key in the vault is used to protect the database encryption key (DEK), ensuring that the customer retains ownership and control over the encryption material.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.