AZ-900 Describe Azure management and governance Practice Question
This AZ-900 practice question tests your understanding of describe azure management and governance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A company uses Azure Policy to require encryption on storage accounts. They want to automatically deploy an encryption extension to any new storage account that does not have it enabled, without manual intervention. Which policy effect should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
DeployIfNotExists
DeployIfNotExists is the correct effect because it evaluates resources after creation and automatically deploys a required configuration (like an encryption extension) if it is missing, without requiring manual intervention. This effect is specifically designed for scenarios where you need to remediate non-compliant resources by deploying a template or extension, ensuring encryption is enabled on all storage accounts.
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.
✓
DeployIfNotExists
Why this is correct
Correct. DeployIfNotExists can deploy a compliance-related resource (like an extension) to non-compliant resources.
Related concept
Read the scenario before looking for a memorised answer.
✗
Modify
Why it's wrong here
Modify changes properties of existing resources but cannot deploy new resources like extensions.
✗
Append
Why it's wrong here
Append adds additional properties (e.g., tags) but cannot deploy extensions.
✗
AuditIfNotExists
Why it's wrong here
AuditIfNotExists evaluates compliance but does not take any remediation action.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AuditIfNotExists (which only audits) with DeployIfNotExists (which deploys), mistakenly thinking auditing alone can enforce compliance without manual remediation.
Detailed technical explanation
How to think about this question
DeployIfNotExists works by associating a deployment template with a policy definition; when Azure Policy evaluates a resource and finds the required extension missing, it triggers a deployment using a managed identity to apply the template. This effect is often used with Azure Policy's 'deployIfNotExists' initiative for guest configuration or encryption extensions, and it requires the policy to have a system-assigned managed identity with appropriate permissions to perform the deployment. A subtle behavior is that DeployIfNotExists only triggers on new resources or on existing resources during a policy assignment evaluation cycle, not retroactively unless a remediation task is manually created.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure management and governance — This question tests Describe Azure management and governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: DeployIfNotExists — DeployIfNotExists is the correct effect because it evaluates resources after creation and automatically deploys a required configuration (like an encryption extension) if it is missing, without requiring manual intervention. This effect is specifically designed for scenarios where you need to remediate non-compliant resources by deploying a template or extension, ensuring encryption is enabled on all storage accounts.
What should I do if I get this AZ-900 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.
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Question Discussion
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