- A
Delete the archived blob and upload a new copy from backup.
Why wrong: Deleting and reuploading is more disruptive than necessary and depends on having another copy available immediately.
- B
Change the blob tier to Hot or Cool and wait for the rehydration process to finish.
Archive blobs are offline and cannot be read directly until they are rehydrated. The administrator should change the tier from Archive to Hot or Cool, which starts rehydration and makes the blob readable again after the process completes. This is the least disruptive recovery path because it preserves the existing blob and uses the supported restore mechanism instead of recreating the data.
- C
Enable soft delete on the storage account and retry the read operation.
Why wrong: Soft delete protects against deletion, but it does not bring an archived blob back online for reading.
- D
Convert the storage account to premium performance.
Why wrong: Changing the account performance type does not automatically rehydrate archived data or resolve the read failure.
AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage 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.
A batch job fails with a blob read error after the administrator moved a 200-GB blob to the archive tier. The file must be available again within a few hours, and the administrator wants the least disruptive recovery. What should be done?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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 tier to Hot or Cool and wait for the rehydration process to finish.
Option B is correct because moving a blob to the archive tier makes it offline; to read it, you must first rehydrate it by changing the tier to Hot or Cool. Rehydration typically completes within a few hours (up to 15 hours for archive), meeting the requirement. This is the least disruptive method as it avoids data loss or additional uploads.
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.
- ✗
Delete the archived blob and upload a new copy from backup.
Why it's wrong here
Deleting and reuploading is more disruptive than necessary and depends on having another copy available immediately.
- ✓
Change the blob tier to Hot or Cool and wait for the rehydration process to finish.
Why this is correct
Archive blobs are offline and cannot be read directly until they are rehydrated. The administrator should change the tier from Archive to Hot or Cool, which starts rehydration and makes the blob readable again after the process completes. This is the least disruptive recovery path because it preserves the existing blob and uses the supported restore mechanism instead of recreating the data.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable soft delete on the storage account and retry the read operation.
Why it's wrong here
Soft delete protects against deletion, but it does not bring an archived blob back online for reading.
- ✗
Convert the storage account to premium performance.
Why it's wrong here
Changing the account performance type does not automatically rehydrate archived data or resolve the read failure.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think soft delete (Option C) or changing the account tier (Option D) can immediately restore access, when in fact only explicit rehydration by tier change makes an archived blob readable.
Detailed technical explanation
How to think about this question
Archive tier blobs are stored in a low-cost, offline state with a 180-day minimum retention period. Rehydration involves changing the blob tier to Hot or Cool, which triggers an asynchronous copy of the blob data to an online tier; the process can take up to 15 hours depending on blob size and priority (Standard vs. High). During rehydration, the blob remains in archive tier until the copy completes, but the read operation will fail until the blob is online.
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-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 tier to Hot or Cool and wait for the rehydration process to finish. — Option B is correct because moving a blob to the archive tier makes it offline; to read it, you must first rehydrate it by changing the tier to Hot or Cool. Rehydration typically completes within a few hours (up to 15 hours for archive), meeting the requirement. This is the least disruptive method as it avoids data loss or additional uploads.
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.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
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.
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