Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company uses Azure SQL Database to store personally identifiable information (PII). They need to encrypt specific columns containing social security numbers so that even database administrators with the 'db_owner' role cannot view the plaintext. The application must be able to perform equality searches on the encrypted columns. Which encryption technology should they implement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Transparent Data Encryption (TDE)
TDE encrypts the entire database at rest, but the database engine can still access plaintext. DBAs can query encrypted data in plaintext.
B
Best answer
Always Encrypted with deterministic encryption
Always Encrypted encrypts data in the client driver, so the database cannot see plaintext. Deterministic encryption enables equality matching without revealing data.
C
Distractor review
Dynamic Data Masking
Dynamic Data Masking hides data from non-privileged users, but users with the 'db_owner' role can still see the unmasked plaintext data.
D
Distractor review
Row-Level Security
Row-Level Security restricts row access based on user, but it does not encrypt data. DBAs with 'db_owner' can bypass such policies.
Common exam trap
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.
Technical deep dive
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.
Related practice questions
Related AZ-500 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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FAQ
Questions learners often ask
What does this AZ-500 question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Always Encrypted with deterministic encryption — Always Encrypted with deterministic encryption encrypts data at the client side, so the database engine never sees plaintext. Deterministic encryption allows equality comparisons because the same plaintext always produces the same ciphertext.
What should I do if I get this AZ-500 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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