AZ-400 Develop a security and compliance plan Practice Question
This AZ-400 practice question tests your understanding of develop a security and compliance plan. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Exhibit
Refer to the exhibit.
```yaml
# azure-pipelines.yml
variables:
- group: 'prod-variables'
- name: 'DB_PASSWORD'
value: $(prod-db-password)
```
You are reviewing a pipeline YAML file. The variable 'prod-db-password' is stored in a variable group linked to Azure Key Vault. However, the pipeline fails with an error that the secret cannot be accessed. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The pipeline's authorized service principal lacks 'Get' permission on the Key Vault.
Option C is correct because the pipeline's service principal needs permission to access the Key Vault secrets. Option A is wrong because the variable group is already linked. Option B is wrong because the syntax is correct. Option D is wrong because the secret name in Key Vault might differ, but the error indicates access issue.
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.
✗
The YAML syntax for referencing the variable is incorrect.
Why it's wrong here
The syntax $(prod-db-password) is correct for Azure DevOps.
✓
The pipeline's authorized service principal lacks 'Get' permission on the Key Vault.
Why this is correct
Without proper access, the pipeline cannot retrieve the secret.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The variable group 'prod-variables' does not exist.
Why it's wrong here
If it didn't exist, the error would be about missing variable group.
✗
The secret name in Key Vault does not match 'prod-db-password'.
Why it's wrong here
The error message would be different if the secret didn't exist.
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 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-400 question in full detail.
Identify which AZ-400 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.
Develop a security and compliance plan — This question tests Develop a security and compliance plan — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The pipeline's authorized service principal lacks 'Get' permission on the Key Vault. — Option C is correct because the pipeline's service principal needs permission to access the Key Vault secrets. Option A is wrong because the variable group is already linked. Option B is wrong because the syntax is correct. Option D is wrong because the secret name in Key Vault might differ, but the error indicates access issue.
What should I do if I get this AZ-400 question wrong?
Identify which AZ-400 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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