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Secure compute, storage, and databases →mediumMultiple ChoiceObjective-mapped

AZ-500 Secure compute, storage, and databases Practice Question

This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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.

{
  "properties": {
    "encryption": {
      "keySource": "Microsoft.Keyvault",
      "keyvaultproperties": {
        "keyvaulturi": "https://myvault.vault.azure.net/keys/mykey",
        "keyname": "mykey",
        "keyversion": "1.0"
      },
      "services": {
        "blob": {
          "enabled": true
        },
        "file": {
          "enabled": true
        }
      }
    },
    "networkAcls": {
      "defaultAction": "Deny"
    }
  }
}

You receive the above ARM template snippet for an Azure Storage account. After deployment, a developer reports that they cannot access the storage account from a permitted virtual network. 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.

Question 1mediummultiple choice
Full question →

Exhibit

Refer to the exhibit.

{
  "properties": {
    "encryption": {
      "keySource": "Microsoft.Keyvault",
      "keyvaultproperties": {
        "keyvaulturi": "https://myvault.vault.azure.net/keys/mykey",
        "keyname": "mykey",
        "keyversion": "1.0"
      },
      "services": {
        "blob": {
          "enabled": true
        },
        "file": {
          "enabled": true
        }
      }
    },
    "networkAcls": {
      "defaultAction": "Deny"
    }
  }
}

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

No virtual network rules are defined, so all traffic is denied by default.

The encryption configuration is correct; the issue is that the network ACLs have defaultAction set to 'Deny' but no virtual network rules are defined. Option B is correct. Option A (key version) is not the issue because the version is specified. Option C (blob and file encryption) is fine. Option D (key vault permission) is not indicated in the exhibit.

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

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    The encryption services for blob and file are not enabled correctly.

    Why it's wrong here

    The snippet shows blob and file encryption enabled; that is correct.

  • ✓

    No virtual network rules are defined, so all traffic is denied by default.

    Why this is correct

    With defaultAction Deny and no rules, network traffic from any source, including a permitted VNet, is denied.

    Clue confirmation

    The clue word "most likely" in the question point toward this answer.

    Related concept

    Standard ACLs match source addresses.

  • ✗

    The key version is pinned to an older version, causing encryption failures.

    Why it's wrong here

    The key version is specified and valid; encryption should work.

  • ✗

    The Key Vault firewall is blocking access to the encryption key.

    Why it's wrong here

    There is no indication of a Key Vault firewall issue; the problem is network ACLs.

Common exam traps

Common exam trap: ACLs stop at the first match

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

  • Command / output trap

    The snippet shows blob and file encryption enabled; that is correct.

Detailed technical explanation

How to think about this question

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.

KKey Concepts to Remember

  • Standard ACLs match source addresses.
  • Extended ACLs can match source, destination, protocol and ports.
  • The first matching ACL entry is used.
  • There is usually an implicit deny at the end.

TExam Day Tips

  • Check inbound versus outbound direction.
  • Read the ACL from top to bottom.
  • Look for a broader permit or deny above the intended line.

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

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.

What to study next

Got this wrong? Here's your next step.

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-500 ACL questions on filtering logic and placement.

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FAQ

Questions learners often ask

What does this AZ-500 question test?

Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — Standard ACLs match source addresses..

What is the correct answer to this question?

The correct answer is: No virtual network rules are defined, so all traffic is denied by default. — The encryption configuration is correct; the issue is that the network ACLs have defaultAction set to 'Deny' but no virtual network rules are defined. Option B is correct. Option A (key version) is not the issue because the version is specified. Option C (blob and file encryption) is fine. Option D (key vault permission) is not indicated in the exhibit.

What should I do if I get this AZ-500 question wrong?

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-500 ACL questions on filtering logic and placement.

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?

Standard ACLs match source addresses.

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Last reviewed: Jun 20, 2026

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This AZ-500 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-500 exam.