AZ-104 Implement and Manage Storage Practice Question
A support engineer must download a blob that was moved to the Archive tier by a lifecycle rule. The file must be available as soon as possible for an investigation. What should the engineer do first?
⚠ Common exam trap
Watch out — candidates often assume archived blobs are still accessible for download or that lifecycle rules can be disabled to instantly restore access, but Azure requires explicit tier change and rehydration before any read operation.
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's tier to Hot or Cool and wait for rehydration to complete.
Blobs in the Archive tier are offline and must be rehydrated to a Hot or Cool tier before they can be accessed. Rehydration can take up to 15 hours, but setting the tier to Hot or Cool initiates the process, making the blob available as soon as possible for investigation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Download the blob directly from the Archive tier because archived blobs are always online.
Why it's wrong here
The Archive tier is explicitly designed for offline storage, so archived blobs are not immediately accessible for reading or downloading. When a blob is in Archive, a direct download attempt fails (e.g., with an HTTP 409 error) until you initiate rehydration by changing the tier to Hot or Cool and that process completes. Archive access is not 'online'—the data is stored in a low-cost, high-latency state that requires an explicit tier change before any data plane operation like download can succeed.
When this WOULD be correct
If the blob were in the Hot or Cool tier, or if the question specified that the blob was already rehydrated, then downloading directly would be correct.
- ✓
Change the blob's tier to Hot or Cool and wait for rehydration to complete.
Why this is correct
Archived blobs are stored offline, so they must be rehydrated before the data can be read or downloaded. Changing the tier to Hot or Cool starts that process. If the engineer needs the blob available as quickly as possible, the appropriate administrative action is to initiate rehydration rather than trying to access the file directly from Archive.
- ✗
Move the blob to a different container in the same account to make it downloadable immediately.
Why it's wrong here
Moving a blob to another container in the same storage account does not bypass the Archive tier's offline constraint. The move operation itself requires reading the source blob's data, which is impossible for an archived blob until it is rehydrated to Hot or Cool. Even if you could relocate the blob (e.g., using a management-plane operation that doesn't read data), the blob would simply remain in the Archive tier in the destination container, still requiring rehydration before download.
When this WOULD be correct
If the question asked how to organize blobs into different containers for lifecycle management or access control, moving a blob to another container would be a valid step, but not for immediate download of an archived blob.
- ✗
Disable the lifecycle rule so the blob becomes immediately readable again.
Why it's wrong here
Disabling or deleting the lifecycle management rule only prevents future automatic tier transitions; it has no effect on the current access tier of a blob that is already archived. The blob stays in the Archive tier, remains offline, and is still unreadable until you perform an explicit rehydration operation (changing its tier to Hot or Cool). Lifecycle rules govern when blobs move between tiers, not how to restore access to data already residing in Archive—so no download becomes possible just by turning the rule off.
When this WOULD be correct
This would be correct if the question asked how to prevent future blobs from being automatically archived to the Archive tier, and the current blob was already in a readable tier (e.g., Hot or Cool).
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's tier to Hot or Cool and wait for rehydration to complete.Correct answer▾
Why this is correct
Archived blobs are stored offline, so they must be rehydrated before the data can be read or downloaded. Changing the tier to Hot or Cool starts that process. If the engineer needs the blob available as quickly as possible, the appropriate administrative action is to initiate rehydration rather than trying to access the file directly from Archive.
✗Download the blob directly from the Archive tier because archived blobs are always online.Wrong answer — click to see why▾
Why this is wrong here
Azure Archive tier blobs are offline and cannot be downloaded directly; they must first be rehydrated to Hot or Cool tier, which takes time.
★ When this WOULD be the correct answer
If the blob were in the Hot or Cool tier, or if the question specified that the blob was already rehydrated, then downloading directly would be correct.
Why candidates choose this
Candidates may mistakenly believe that all Azure blob tiers are immediately accessible, or they may confuse 'Archive' with 'Cool' tier, which is online but has lower availability.
✗Move the blob to a different container in the same account to make it downloadable immediately.Wrong answer — click to see why▾
Why this is wrong here
Moving a blob to a different container does not change its tier; the blob remains in the Archive tier and is still offline, requiring rehydration before download.
★ When this WOULD be the correct answer
If the question asked how to organize blobs into different containers for lifecycle management or access control, moving a blob to another container would be a valid step, but not for immediate download of an archived blob.
Why candidates choose this
Candidates may think that moving the blob to a new container resets its state or bypasses the archive restriction, confusing storage container operations with blob tier changes.
✗Disable the lifecycle rule so the blob becomes immediately readable again.Wrong answer — click to see why▾
Why this is wrong here
Disabling the lifecycle rule does not change the blob's current tier; the blob remains in the Archive tier and is still offline. The blob must be rehydrated to a hot or cool tier before it can be read.
★ When this WOULD be the correct answer
This would be correct if the question asked how to prevent future blobs from being automatically archived to the Archive tier, and the current blob was already in a readable tier (e.g., Hot or Cool).
Why candidates choose this
Candidates may think that disabling the rule reverses the tier change or makes the blob immediately accessible, misunderstanding that lifecycle rules only affect future operations, not the current state of already-tiered blobs.
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?”
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 |
Go deeper
Related to this question
Learn chapter
Azure Files and Azure File Sync
Key term
Cool tier
Cool tier is a low-cost, online-only storage access tier in Microsoft Azure Blob Storage designed for data that is infrequently accessed and stored for at least 30 days.
Key term
Blob
A blob is a large piece of unstructured data, like a photo or video, stored in the cloud with a unique identifier.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AZ-104 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-104 exam.