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Design data storage solutions →hardMultiple ChoiceObjective-mapped

AZ-305 Design data storage solutions Practice Question

This AZ-305 practice question tests your understanding of design data storage solutions. 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.

Exhibit

Refer to the exhibit.

```json
{
  "properties": {
    "defaultEncryption": false,
    "encryption": {
      "keySource": "Microsoft.Storage",
      "services": {
        "blob": {
          "enabled": true
        },
        "file": {
          "enabled": false
        }
      }
    }
  }
}
```

You are reviewing the encryption settings of an Azure Storage account using the above JSON output. What is the current encryption status for files stored in Azure Files shares in this account?

Question 1hardmultiple choice
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Exhibit

Refer to the exhibit.

```json
{
  "properties": {
    "defaultEncryption": false,
    "encryption": {
      "keySource": "Microsoft.Storage",
      "services": {
        "blob": {
          "enabled": true
        },
        "file": {
          "enabled": false
        }
      }
    }
  }
}
```

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

✓

Files are not encrypted at rest

The JSON output shows `"defaultEncryption": false` for the Azure Files share. In Azure Storage, when `defaultEncryption` is set to `false`, it means that server-side encryption (SSE) is not enabled by default for that file share. Therefore, files stored in this Azure Files share are not encrypted at rest. Option D correctly identifies this unencrypted state.

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.

  • ✗

    Files are encrypted because defaultEncryption is false

    Why it's wrong here

    defaultEncryption false does not enable encryption.

  • ✗

    Files are encrypted at rest using Azure Storage encryption

    Why it's wrong here

    Encryption is disabled for files.

  • ✗

    Files are encrypted using customer-managed keys

    Why it's wrong here

    Key source is Microsoft.Storage, not customer-managed.

  • ✓

    Files are not encrypted at rest

    Why this is correct

    File service encryption is disabled.

    Related concept

    Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates assume `defaultEncryption: false` means encryption is still applied by default at the storage account level, but in Azure Files, this property directly controls whether the share itself is encrypted, and a `false` value means no encryption is applied to that share.

Detailed technical explanation

How to think about this question

Azure Files supports two encryption scopes: server-side encryption (SSE) with platform-managed keys (enabled by default for new storage accounts) and customer-managed keys (CMK). The `defaultEncryption` property in the REST API or Azure CLI output indicates whether SSE is enabled at the share level. When `false`, the share inherits the account-level encryption setting, which may be disabled if not explicitly configured. This is critical for compliance scenarios where encryption must be enforced at the share level, such as for HIPAA or PCI DSS requirements.

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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-305 question test?

Design data storage solutions — This question tests Design data storage solutions — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Files are not encrypted at rest — The JSON output shows `"defaultEncryption": false` for the Azure Files share. In Azure Storage, when `defaultEncryption` is set to `false`, it means that server-side encryption (SSE) is not enabled by default for that file share. Therefore, files stored in this Azure Files share are not encrypted at rest. Option D correctly identifies this unencrypted state.

What should I do if I get this AZ-305 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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Last reviewed: Jun 24, 2026

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This AZ-305 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-305 exam.