Courseiva
← AZ-305
Full test
Question 42 of 999
Design data storage solutions →easyMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is that previous versions of blobs are retained. This is true because the JSON configuration explicitly sets the `versioning` property to `Enabled` for the Azure Blob Storage container, meaning every write or delete operation automatically creates a new immutable version while preserving all prior ones indefinitely unless removed by lifecycle policies or explicit deletion. On the Microsoft Azure Solutions Architect Expert AZ-305 exam, blob versioning is a key data protection concept often tested alongside soft delete and snapshots; a common trap is confusing versioning with snapshots—versioning is automatic and container-wide, whereas snapshots are manual and blob-specific. Remember the memory tip: “Versioning is automatic history; snapshots are manual time capsules.”

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": {
    "isVersioningEnabled": true,
    "deleteRetentionPolicy": {
      "enabled": true,
      "days": 7
    },
    "restorePolicy": {
      "enabled": true,
      "days": 30
    }
  }
}
```

You are reviewing the data protection settings of an Azure Blob Storage container using the above JSON. Which of the following is true?

Question 1easymultiple choice
Full question →

Exhibit

Refer to the exhibit.

```json
{
  "properties": {
    "isVersioningEnabled": true,
    "deleteRetentionPolicy": {
      "enabled": true,
      "days": 7
    },
    "restorePolicy": {
      "enabled": true,
      "days": 30
    }
  }
}
```

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

✓

Previous versions of blobs are retained

Option C is correct because the JSON shows that the `versioning` property is set to `Enabled` for the Blob Storage container. When versioning is enabled, every modification to a blob creates a new version, and previous versions are retained indefinitely (or until explicitly deleted or a lifecycle management policy removes them). This directly supports the statement that previous versions of blobs are retained.

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.

  • ✗

    Deleted blobs are retained for 30 days

    Why it's wrong here

    Delete retention policy is 7 days.

  • ✗

    Blobs can be restored to any point within the last 7 days

    Why it's wrong here

    Restore policy allows up to 30 days.

  • ✓

    Previous versions of blobs are retained

    Why this is correct

    Versioning is enabled.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Versioning is disabled

    Why it's wrong here

    isVersioningEnabled is true.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may confuse versioning with soft delete or point-in-time restore, assuming that versioning alone provides a specific retention period or point-in-time recovery capability, when in fact versioning retains all versions indefinitely unless a lifecycle policy is applied.

Detailed technical explanation

How to think about this question

Azure Blob Storage versioning works by automatically creating a new version of a blob each time it is modified or deleted, with each version stored as a separate object. This allows you to restore a previous version of a blob at any time, but note that versioning does not protect against accidental deletion of the storage account itself—that requires soft delete or a backup strategy. In practice, versioning is often combined with lifecycle management policies to automatically delete older versions after a specified period to control costs.

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.

Related practice questions

Related AZ-305 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Design identity, governance, and monitoring solutions practice questions

Practise AZ-305 questions linked to Design identity, governance, and monitoring solutions.

Design data storage solutions practice questions

Practise AZ-305 questions linked to Design data storage solutions.

Design business continuity solutions practice questions

Practise AZ-305 questions linked to Design business continuity solutions.

Design infrastructure solutions practice questions

Practise AZ-305 questions linked to Design infrastructure solutions.

SAA-C03 VPC practice questions

Practise AZ-305 questions linked to SAA-C03 VPC.

SAA-C03 S3 lifecycle policy questions

Practise AZ-305 questions linked to SAA-C03 S3 lifecycle policy questions.

SAA-C03 RDS Multi-AZ questions

Practise AZ-305 questions linked to SAA-C03 RDS Multi-AZ questions.

SAA-C03 IAM policy practice questions

Practise AZ-305 questions linked to SAA-C03 IAM policy.

SAA-C03 Route 53 failover questions

Practise AZ-305 questions linked to SAA-C03 Route 53 failover questions.

SAA-C03 CloudFront practice questions

Practise AZ-305 questions linked to SAA-C03 CloudFront.

SAA-C03 NAT gateway questions

Practise AZ-305 questions linked to SAA-C03 NAT gateway questions.

SAA-C03 VPC endpoint questions

Practise AZ-305 questions linked to SAA-C03 VPC endpoint questions.

Practice this exam

Start a free AZ-305 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions20 questions30 questions50 questionsTimed 30
AZ-305 practice-test guide →Study guide →Browse all practice tests

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: Previous versions of blobs are retained — Option C is correct because the JSON shows that the `versioning` property is set to `Enabled` for the Blob Storage container. When versioning is enabled, every modification to a blob creates a new version, and previous versions are retained indefinitely (or until explicitly deleted or a lifecycle management policy removes them). This directly supports the statement that previous versions of blobs are retained.

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.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Last reviewed: Jun 24, 2026

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

Sign in to join the discussion.

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.