- A
Copy the blob directly from Archive tier to the client's local disk.
Why wrong: Archived blobs cannot be downloaded immediately. They must be rehydrated to an online tier before standard read operations succeed.
- B
Change the blob access tier to Hot and wait for rehydration to finish before downloading it.
Archive blobs are offline and must be rehydrated to an online tier before they can be read. Moving the blob to Hot is appropriate when rapid access is needed after rehydration completes. The administrator should expect a delay during rehydration, then the blob can be downloaded normally.
- C
Assign the blob a shorter retention policy so it becomes accessible automatically.
Why wrong: Retention settings affect governance and deletion timing, not whether an archived blob is online and readable.
- D
Move the blob to the Cool tier and attempt the download immediately.
Why wrong: Cool is an online tier, but the blob must first be rehydrated out of Archive before it can be accessed. The download will not work immediately while still archived.
AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage storage. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 lifecycle rule moved quarterly audit logs to the Archive tier. An auditor now needs one blob for an urgent investigation and wants it available for download as soon as the rehydration completes. What should the administrator do?
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
Change the blob access tier to Hot and wait for rehydration to finish before downloading it.
Option B is correct because changing the access tier of a blob from Archive to Hot initiates an asynchronous rehydration process that moves the blob data back to an online tier. Once rehydration completes, the blob becomes available for download. This is the standard method to make archived blobs accessible for immediate use.
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.
- ✗
Copy the blob directly from Archive tier to the client's local disk.
Why it's wrong here
Archived blobs cannot be downloaded immediately. They must be rehydrated to an online tier before standard read operations succeed.
When this WOULD be correct
If the blob were already in an online tier (e.g., Cool) and the question asked for the fastest way to download it without changing tiers, copying directly to local disk would be correct.
- ✓
Change the blob access tier to Hot and wait for rehydration to finish before downloading it.
Why this is correct
Archive blobs are offline and must be rehydrated to an online tier before they can be read. Moving the blob to Hot is appropriate when rapid access is needed after rehydration completes. The administrator should expect a delay during rehydration, then the blob can be downloaded normally.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Assign the blob a shorter retention policy so it becomes accessible automatically.
Why it's wrong here
Retention settings affect governance and deletion timing, not whether an archived blob is online and readable.
When this WOULD be correct
If a question asks how to automatically delete a blob after a specific period (e.g., for compliance or cleanup), setting a retention policy (e.g., via immutability or lifecycle management) would be correct.
- ✗
Move the blob to the Cool tier and attempt the download immediately.
Why it's wrong here
Cool is an online tier, but the blob must first be rehydrated out of Archive before it can be accessed. The download will not work immediately while still archived.
When this WOULD be correct
If the question stated that the blob is currently in the Cool tier and the auditor needs it urgently, moving it to Hot tier and waiting for rehydration would be the correct approach. Alternatively, if the blob were in Archive and the requirement was to minimize cost while still allowing access within a few hours, moving to Cool tier (instead of Hot) could be correct.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Change the blob access tier to Hot and wait for rehydration to finish before downloading it.Correct answer▾
Why this is correct
Archive blobs are offline and must be rehydrated to an online tier before they can be read. Moving the blob to Hot is appropriate when rapid access is needed after rehydration completes. The administrator should expect a delay during rehydration, then the blob can be downloaded normally.
✗Copy the blob directly from Archive tier to the client's local disk.Wrong answer — click to see why▾
Why this is wrong here
Blobs in Archive tier are offline and cannot be directly downloaded; they must first be rehydrated to an online tier (Hot, Cool, or Cold) before any download operation.
★ When this WOULD be the correct answer
If the blob were already in an online tier (e.g., Cool) and the question asked for the fastest way to download it without changing tiers, copying directly to local disk would be correct.
Why candidates choose this
Candidates may think that copying triggers rehydration or that Archive blobs are still readable, not realizing they are offline and require an explicit tier change to become accessible.
✗Assign the blob a shorter retention policy so it becomes accessible automatically.Wrong answer — click to see why▾
Why this is wrong here
Assigning a shorter retention policy does not affect the blob's access tier; Archive blobs remain offline until rehydrated, regardless of retention settings.
★ When this WOULD be the correct answer
If a question asks how to automatically delete a blob after a specific period (e.g., for compliance or cleanup), setting a retention policy (e.g., via immutability or lifecycle management) would be correct.
Why candidates choose this
Candidates may confuse retention policies with access tiers, thinking that reducing retention somehow makes data accessible sooner, when retention only controls deletion, not availability.
✗Move the blob to the Cool tier and attempt the download immediately.Wrong answer — click to see why▾
Why this is wrong here
Moving a blob from Archive to Cool tier initiates a rehydration process that can take up to 15 hours, and the blob is not accessible for download until rehydration completes. Attempting to download immediately will fail.
★ When this WOULD be the correct answer
If the question stated that the blob is currently in the Cool tier and the auditor needs it urgently, moving it to Hot tier and waiting for rehydration would be the correct approach. Alternatively, if the blob were in Archive and the requirement was to minimize cost while still allowing access within a few hours, moving to Cool tier (instead of Hot) could be correct.
Why candidates choose this
Candidates may think that Cool tier is a lower-cost tier that still allows immediate access, not realizing that rehydration from Archive to any access tier (Hot, Cool, or Archive itself) takes time.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume changing the tier to Cool allows immediate download, but they overlook that rehydration from Archive is always required and takes time, regardless of the target tier.
Detailed technical explanation
How to think about this question
Rehydration from Archive tier involves setting the blob's tier to Hot or Cool, which triggers a background operation that can take up to 15 hours (depending on blob size and priority). During rehydration, the blob's status changes to 'rehydrate-pending-to-hot' or 'rehydrate-pending-to-cool', and read requests will fail until the process finishes. The Set Blob Tier REST API (PUT blob?comp=tier) is used to initiate this, and the operation is asynchronous—polling the blob properties for the ArchiveStatus field can confirm completion.
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.
Visual reference
Quick reference
Azure Blob Storage Tier Comparison
| Tier | Storage Cost | Retrieval Cost | Latency | Use Case |
|---|---|---|---|---|
| Hot | Highest | Lowest | Immediate | Active data, frequent reads |
| Cool | Lower | Higher | Immediate | Data accessed < once / month |
| Cold | Lower still | Higher | Immediate | Data accessed < once / quarter |
| Archive | Lowest | Highest + rehydration delay | Hours | Long-term compliance retention |
What to study next
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Storage — This question tests Implement and Manage Storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Change the blob access tier to Hot and wait for rehydration to finish before downloading it. — Option B is correct because changing the access tier of a blob from Archive to Hot initiates an asynchronous rehydration process that moves the blob data back to an online tier. Once rehydration completes, the blob becomes available for download. This is the standard method to make archived blobs accessible for immediate use.
What should I do if I get this AZ-104 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 →
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Last reviewed: Jun 11, 2026
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