Question 323 of 997

Develop for Azure storage →hardMultiple SelectObjective-mapped

AZ-204 Develop for Azure storage Practice Question

This AZ-204 practice question tests your understanding of develop for azure storage. 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.

Which THREE Azure Storage features can be used to enforce immutability for compliance requirements?

A
Blob versioning with delete lock policy
Versioning with delete lock can prevent permanent deletion.
B
Legal hold on a blob container
Legal hold prevents deletion until hold is removed.
C
Blob immutability policy (time-based retention)
Time-based retention prevents modification/deletion for a specified period.
D
Soft delete for blobs
Why wrong: Soft delete allows recovery but does not prevent deletion.
E
Storage account firewall rules
Why wrong: Firewall rules restrict access but do not enforce immutability.

Full breakdown with real-world context →

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

✓

Blob versioning with delete lock policy

Option A is correct because blob versioning with a delete lock policy prevents deletion of blob versions, effectively enforcing immutability by ensuring that once a version is created, it cannot be deleted or overwritten. This satisfies compliance requirements such as SEC 17a-4(f) or FINRA rules that mandate data preservation.

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.

✓
Blob versioning with delete lock policy
Why this is correct
Versioning with delete lock can prevent permanent deletion.
Related concept
Read the scenario before looking for a memorised answer.
✓
Legal hold on a blob container
Why this is correct
Legal hold prevents deletion until hold is removed.
Related concept
Read the scenario before looking for a memorised answer.
✓
Blob immutability policy (time-based retention)
Why this is correct
Time-based retention prevents modification/deletion for a specified period.
Related concept
Read the scenario before looking for a memorised answer.
✗
Soft delete for blobs
Why it's wrong here
Soft delete allows recovery but does not prevent deletion.
✗
Storage account firewall rules
Why it's wrong here
Firewall rules restrict access but do not enforce immutability.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may confuse soft delete with immutability, not realizing that soft delete only offers recovery, not prevention of deletion or modification, which is required for true compliance immutability.

Detailed technical explanation

How to think about this question

Blob immutability policies (time-based retention) use a WORM (Write Once, Read Many) model, where blobs cannot be deleted or overwritten until the retention period expires. Legal hold is a container-level policy that applies an indefinite lock on all blobs, overriding any time-based policy. Both are enforced at the storage service level via REST API calls that check the immutability status before allowing write or delete operations.

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-204 question test?

Develop for Azure storage — This question tests Develop for Azure storage — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Blob versioning with delete lock policy — Option A is correct because blob versioning with a delete lock policy prevents deletion of blob versions, effectively enforcing immutability by ensuring that once a version is created, it cannot be deleted or overwritten. This satisfies compliance requirements such as SEC 17a-4(f) or FINRA rules that mandate data preservation.

What should I do if I get this AZ-204 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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