Quick Answer
The answer is Audit, Deny, and DeployIfNotExists. These three policy effects work together to enforce HTTPS and network access restrictions on Azure Storage with Azure Policy: Deny actively blocks the creation or update of non-compliant storage accounts that lack HTTPS enforcement or proper network rules, Audit logs any existing non-compliant resources for visibility and reporting, and DeployIfNotExists can automatically remediate non-compliant accounts by deploying required network rules or HTTPS settings. On the Microsoft Cybersecurity Architect exam, this question tests your understanding of how Azure Policy effects map to specific compliance scenarios, often appearing in design questions about securing data at rest and in transit. A common trap is confusing Append or Modify with DeployIfNotExists—remember that Append only adds tags or properties, not network rules, while Modify changes existing properties but cannot deploy new rule sets. For a memory tip, think “DAD” for Deny, Audit, DeployIfNotExists—the three effects that enforce, log, and fix storage security.
This SC-100 practice question tests your understanding of design security solutions for infrastructure. 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 security solution for Azure resources using Azure Policy. You need to ensure that all storage accounts enforce HTTPS traffic and that only certain virtual networks can access them. Which THREE policy effects can you use to achieve this?
DeployIfNotExists
DeployIfNotExists can deploy network rules to storage accounts.
Append
Why wrong: Append adds configuration, not suitable for HTTPS enforcement.
Modify
Why wrong: Modify can change settings but not typically used for HTTPS.
Deny
Deny can block storage accounts that do not enforce HTTPS.
Audit
Audit logs non-compliant storage accounts.
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
Option A, D, and E are correct. Deny prevents creation of non-compliant resources, Audit logs non-compliant resources, and DeployIfNotExists can deploy network rules. Option B is wrong because Append adds to existing resources but not for network rules. Option C is wrong because Modify changes properties, but not suitable for enforcing HTTPS.
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.
DeployIfNotExists
Why this is correct
DeployIfNotExists can deploy network rules to storage accounts.
Related concept
Standard ACLs match source addresses.
Append
Why it's wrong here
Append adds configuration, not suitable for HTTPS enforcement.
Modify
Why it's wrong here
Modify can change settings but not typically used for HTTPS.
Deny
Why this is correct
Deny can block storage accounts that do not enforce HTTPS.
Related concept
Standard ACLs match source addresses.
Audit
Why this is correct
Audit logs non-compliant storage accounts.
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.
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 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.
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 SC-100 ACL questions on filtering logic and placement.
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FAQ
Design security solutions for infrastructure — This question tests Design security solutions for infrastructure — Standard ACLs match source addresses..
The correct answer is: DeployIfNotExists — Option A, D, and E are correct. Deny prevents creation of non-compliant resources, Audit logs non-compliant resources, and DeployIfNotExists can deploy network rules. Option B is wrong because Append adds to existing resources but not for network rules. Option C is wrong because Modify changes properties, but not suitable for enforcing HTTPS.
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 SC-100 ACL questions on filtering logic and placement.
Standard ACLs match source addresses.
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Last reviewed: Jun 21, 2026
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