Quick Answer
The correct answer is DeployIfNotExists, because this Azure Policy effect automatically deploys a resource or configuration—such as enabling Advanced Data Security (ADS) on Azure SQL databases—when the resource is found to be non-compliant. Unlike AuditIfNotExists, which only reports non-compliance, or Deny, which blocks creation, DeployIfNotExists actively remediates by provisioning the missing security setting during policy evaluation. On the AZ-204 exam, this concept tests your understanding of policy-driven governance and automated compliance enforcement, often appearing in scenarios where you must ensure security baselines without manual intervention. A common trap is confusing DeployIfNotExists with AuditIfNotExists—remember that “Deploy” means action, while “Audit” only watches. For a memory tip, think of it as “Deploy to fix what’s missing”—if ADS isn’t there, the policy deploys it for you.
This AZ-204 practice question tests your understanding of implement azure security. 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.
Your organization uses Azure Policy to enforce compliance. You need to ensure that all Azure SQL databases have Advanced Data Security (ADS) enabled. What type of Azure Policy effect should you use to automatically enable ADS if it is not already enabled?
Audit
Why wrong: Audit only logs compliance, does not enable ADS automatically.
Modify
Why wrong: Modify can change existing resources but typically requires a remediation task; DeployIfNotExists is more common for this scenario.
Deny
Why wrong: Deny prevents creation of databases without ADS but does not enable it on existing ones.
DeployIfNotExists
Deploys the ADS configuration if missing, ensuring automatic remediation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
DeployIfNotExists
DeployIfNotExists effect can deploy a resource or configuration if it does not exist. Option A is correct. Option B audits but doesn't remediate. Option C denies non-compliant resources but does not automatically enable. Option D is for removing resources.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Audit
Why it's wrong here
Audit only logs compliance, does not enable ADS automatically.
Modify
Why it's wrong here
Modify can change existing resources but typically requires a remediation task; DeployIfNotExists is more common for this scenario.
Deny
Why it's wrong here
Deny prevents creation of databases without ADS but does not enable it on existing ones.
DeployIfNotExists
Why this is correct
Deploys the ADS configuration if missing, ensuring automatic remediation.
Related concept
Standard ACLs match source addresses.
Common exam traps
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Trap categories for this question
Scenario analysis trap
Modify can change existing resources but typically requires a remediation task; DeployIfNotExists is more common for this scenario.
Detailed technical explanation
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
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. ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related AZ-204 ACL questions on filtering logic and placement.
Implement Azure security — study guide chapter
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FAQ
Implement Azure security — This question tests Implement Azure security — Standard ACLs match source addresses..
The correct answer is: DeployIfNotExists — DeployIfNotExists effect can deploy a resource or configuration if it does not exist. Option A is correct. Option B audits but doesn't remediate. Option C denies non-compliant resources but does not automatically enable. Option D is for removing resources.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related AZ-204 ACL questions on filtering logic and placement.
Standard ACLs match source addresses.
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Last reviewed: Jun 20, 2026
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