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 are designing a secure data solution for a financial application. The data must be encrypted at rest, in transit, and in use. You choose Azure SQL Database. Which combination of features should you implement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Transparent Data Encryption, enforce TLS, and Always Encrypted
To encrypt data at rest, use Transparent Data Encryption (TDE). For in-transit, enforce TLS. For in-use, use Always Encrypted. Option C is correct. Option A is wrong because Dynamic Data Masking is for masking, not encryption. Option B is wrong because Azure Active Directory authentication is not encryption. Option D is wrong because column-level security is for access control.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Transparent Data Encryption, enforce TLS, and Always Encrypted
Why this is correct
TDE for at rest, TLS for in transit, Always Encrypted for in use.
Azure Information Protection, Dynamic Data Masking, and column-level security
Why it's wrong here
Column-level security controls access, does not encrypt data in use.
✗
Always Encrypted, Azure Active Directory authentication, and Azure Information Protection
Why it's wrong here
Azure Information Protection is not native to SQL Database.
✗
Transparent Data Encryption, Dynamic Data Masking, and Azure Active Directory authentication
Why it's wrong here
Dynamic Data Masking masks data but does not encrypt it in use.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
CIDR notation defines the prefix length.
Block size helps identify subnet boundaries.
Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
The required host count determines the smallest suitable subnet.
TExam Day Tips
→Write the block size before choosing the subnet.
→Check whether the question asks for hosts, subnets or a specific address range.
→Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-500 question in full detail.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related AZ-500 subnetting questions on CIDR, address ranges, and subnet selection.
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Transparent Data Encryption, enforce TLS, and Always Encrypted — To encrypt data at rest, use Transparent Data Encryption (TDE). For in-transit, enforce TLS. For in-use, use Always Encrypted. Option C is correct. Option A is wrong because Dynamic Data Masking is for masking, not encryption. Option B is wrong because Azure Active Directory authentication is not encryption. Option D is wrong because column-level security is for access control.
What should I do if I get this AZ-500 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related AZ-500 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Question Discussion
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