The answer is legal hold, the correct feature for preventing any modification or deletion of blobs in Azure Blob Storage during an indefinite legal investigation. Unlike time-based retention policies, a legal hold imposes an immutable state on blobs with no expiration date, meaning that even storage account owners cannot alter or remove the data until the hold is explicitly cleared by an authorized user. On the Microsoft Azure Security Engineer Associate AZ-500 exam, this question tests your understanding of immutable storage options, often appearing as a trap where candidates confuse legal hold with time-based retention policies—remember that legal hold is indefinite and manually released, while retention policies have a set duration. A common memory tip is to associate “legal hold” with “no clock,” since it never expires on its own, and think of it as a court-ordered lock that only a judge (authorized user) can remove.
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.
A company stores business records in Azure Blob Storage. Due to a legal investigation, they must prevent any modification or deletion of the blobs for an indefinite period until the legal hold is released. They also need to ensure that even storage account owners cannot alter the data during the hold. Which blob storage feature should they enable?
Why wrong: Time-based retention sets a fixed period during which blobs cannot be modified or deleted. However, it is not suitable for indefinite holds required by litigation.
B
Legal hold
Legal hold is a policy that keeps blobs in an immutable state for an indefinite period until the hold is removed. It is designed for legal and compliance scenarios.
C
Soft delete
Why wrong: Soft delete allows recovery of deleted blobs within a retention period, but it does not prevent deletion by authorized users; it only provides a grace period.
D
Blob versioning
Why wrong: Versioning preserves previous versions of blobs when they are modified or deleted, but it does not prevent deletion or modification; it just allows rollback.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Legal hold
Legal hold (option B) is the correct choice because it is designed to protect blobs from any modification or deletion for an indefinite period, even by storage account owners. Unlike time-based retention policies, a legal hold has no expiration and cannot be removed until explicitly cleared by an authorized user, making it ideal for indefinite legal investigations.
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.
✗
Time-based retention policy
Why it's wrong here
Time-based retention sets a fixed period during which blobs cannot be modified or deleted. However, it is not suitable for indefinite holds required by litigation.
✓
Legal hold
Why this is correct
Legal hold is a policy that keeps blobs in an immutable state for an indefinite period until the hold is removed. It is designed for legal and compliance scenarios.
Related concept
Read the scenario before looking for a memorised answer.
✗
Soft delete
Why it's wrong here
Soft delete allows recovery of deleted blobs within a retention period, but it does not prevent deletion by authorized users; it only provides a grace period.
✗
Blob versioning
Why it's wrong here
Versioning preserves previous versions of blobs when they are modified or deleted, but it does not prevent deletion or modification; it just allows rollback.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse time-based retention policies (which have a fixed duration) with legal holds (which are indefinite), or assume that soft delete or versioning can prevent modification or deletion by privileged users, when in fact they only provide recovery options and do not block destructive operations.
Detailed technical explanation
How to think about this question
Under the hood, a legal hold applies an immutable policy at the container level via the Azure Storage REST API, setting the `immutability-policy-mode` to `locked` with a `legal-hold` tag. Once enabled, all blob operations (PUT, DELETE, SET metadata) are rejected with HTTP 409 (Conflict) until the legal hold is removed by an authorized user with the `Microsoft.Storage/storageAccounts/blobServices/containers/immutabilityPolicies/legalHold/action` permission. This is enforced at the storage platform level, bypassing even RBAC roles like Owner, ensuring compliance with legal discovery 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-500 question in full detail.
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Legal hold — Legal hold (option B) is the correct choice because it is designed to protect blobs from any modification or deletion for an indefinite period, even by storage account owners. Unlike time-based retention policies, a legal hold has no expiration and cannot be removed until explicitly cleared by an authorized user, making it ideal for indefinite legal investigations.
What should I do if I get this AZ-500 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 →
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.
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.
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.
Sign in to join the discussion.