The answer is that no additional configuration is needed because TDE on Azure SQL Managed Instance is enabled by default with a service-managed key. This means that as soon as you provision the managed instance, transparent data encryption at rest is automatically active, using a key that Azure manages for you, requiring zero setup from the administrator. On the Microsoft Azure Security Engineer Associate AZ-500 exam, this question tests your understanding of default security controls versus optional enhancements—a common trap is assuming you must manually enable TDE or configure a bring-your-own-key (BYOK) solution, which is only necessary if you want customer-managed keys from Azure Key Vault. Remember, the prerequisite for service-managed key TDE is simply provisioning the instance itself; no backup policies, service endpoints, or key vaults are required. A helpful memory tip: “Default TDE is free—BYOK is for the key you keep.”
AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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 need to enable transparent data encryption (TDE) for an Azure SQL Managed Instance. What is the prerequisite?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
No additional configuration is needed; TDE is enabled by default.
TDE at rest is enabled by default with a service-managed key. Option A is correct. Bring your own key (BYOK) requires Key Vault but is optional. TDE does not require a specific backup policy. Service endpoints are not required.
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.
✗
Configure a backup policy for the managed instance.
Why it's wrong here
Backup policy is not a prerequisite for TDE.
✗
Enable a service endpoint for Azure SQL.
Why it's wrong here
Service endpoints are for network access, not encryption.
✓
No additional configuration is needed; TDE is enabled by default.
Why this is correct
Azure SQL Managed Instance has TDE enabled by default with a service-managed key.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create an Azure Key Vault and configure a customer-managed key.
Why it's wrong here
Customer-managed key is optional for TDE.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 AZ-500 question in full detail.
Identify which AZ-500 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: No additional configuration is needed; TDE is enabled by default. — TDE at rest is enabled by default with a service-managed key. Option A is correct. Bring your own key (BYOK) requires Key Vault but is optional. TDE does not require a specific backup policy. Service endpoints are not required.
What should I do if I get this AZ-500 question wrong?
Identify which AZ-500 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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