AZ-104 Implement and Manage Storage Practice Question
An archive team stores legal exhibits in Azure Blob Storage. The files are downloaded only during quarterly audits, but when an auditor needs one, it must be readable immediately without waiting for a rehydration job. The team wants the lowest practical cost after the first 30 days and does not want to move blobs manually each quarter. What should the administrator configure?
⚠ Common exam trap
A common mix-up: candidates confuse Archive tier's low storage cost with immediate accessibility, forgetting that Archive requires a rehydration step that can take hours, while Cool tier provides instant access at a slightly higher but still cost-effective rate.
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
✓
Use a lifecycle management rule to move the blobs to Cool tier after 30 days.
Azure Blob Storage lifecycle management rules can automatically move blobs from Hot to Cool tier after 30 days, reducing storage costs while keeping data immediately accessible. Cool tier offers lower storage costs than Hot tier with the same low-latency read access, satisfying the requirement for instant auditor access without manual intervention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Keep the blobs in Hot tier permanently and delete them manually after each audit cycle.
Why it's wrong here
Permanently retaining blobs in Hot tier guarantees immediate access, but Hot is designed for data that is accessed or modified frequently and has the highest storage cost of the online tiers. Legal exhibits are rarely accessed after being archived, so keeping them in Hot wastes budget for no operational benefit. Manually deleting blobs after audits is a manual, error-prone process and does nothing to reduce the excessive storage expense incurred between audits.
When this WOULD be correct
If the question required immediate deletion of blobs after each audit to comply with data retention policies, and the team had a process to automate deletion (e.g., via script or lifecycle rule), then manual deletion could be acceptable. However, the question explicitly states no manual moves.
- ✓
Use a lifecycle management rule to move the blobs to Cool tier after 30 days.
Why this is correct
A lifecycle management rule can automatically transition blobs from Hot to Cool tier after 30 days. Cool tier is an online tier, meaning blobs remain immediately readable without any rehydration step, satisfying the legal team's need to access exhibits as soon as an audit begins. It also reduces storage costs versus Hot tier because the data is infrequently accessed, making this the most cost-effective option that still preserves instant availability.
- ✗
Move the blobs to Archive tier after 30 days and rehydrate them when audits begin.
Why it's wrong here
Moving blobs to Archive tier after 30 days provides the lowest storage cost, but Archive is an offline tier. To read any blob, you must first rehydrate it to Hot or Cool, which can take up to several hours and incurs additional read and data-transfer charges. This delay directly violates the requirement that legal exhibits be immediately readable when audits start, so this option is not acceptable despite the lower storage price.
When this WOULD be correct
If the question stated that files are rarely accessed and a delay of several hours for retrieval is acceptable, and the priority is minimizing storage cost over access speed, then moving to Archive tier after 30 days would be correct.
- ✗
Store the files in Premium block blob storage and use snapshots for audit recovery.
Why it's wrong here
Premium block blob storage is backed by SSDs and optimized for low-latency, high-transaction-rate workloads, not for cost-efficient archival. Using it for legal exhibits would incur significantly higher per-gigabyte costs, and snapshots further add storage space for each version, compounding the expense. This solution addresses performance, not cost, and fails to align with the infrequent-access pattern of legal exhibits, making it an inappropriate and unnecessarily expensive choice.
When this WOULD be correct
An application requires consistently low latency (single-digit milliseconds) for frequent read and write operations, such as a real-time data processing pipeline. In that scenario, Premium block blob storage would be the correct choice to meet performance requirements.
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.
✓Use a lifecycle management rule to move the blobs to Cool tier after 30 days.Correct answer▾
Why this is correct
A lifecycle management rule can automatically transition blobs from Hot to Cool tier after 30 days. Cool tier is an online tier, meaning blobs remain immediately readable without any rehydration step, satisfying the legal team's need to access exhibits as soon as an audit begins. It also reduces storage costs versus Hot tier because the data is infrequently accessed, making this the most cost-effective option that still preserves instant availability.
✗Keep the blobs in Hot tier permanently and delete them manually after each audit cycle.Wrong answer — click to see why▾
Why this is wrong here
This option requires manual deletion after each audit cycle, which violates the requirement to avoid manual intervention. Additionally, keeping blobs in Hot tier permanently incurs higher storage costs than using Cool tier after 30 days.
★ When this WOULD be the correct answer
If the question required immediate deletion of blobs after each audit to comply with data retention policies, and the team had a process to automate deletion (e.g., via script or lifecycle rule), then manual deletion could be acceptable. However, the question explicitly states no manual moves.
Why candidates choose this
Candidates may think manual deletion is a simple way to control costs, overlooking the automation requirement and the cost savings of Cool tier for infrequent access.
✗Move the blobs to Archive tier after 30 days and rehydrate them when audits begin.Wrong answer — click to see why▾
Why this is wrong here
Archive tier requires a rehydration job (which can take hours) to make blobs readable, contradicting the requirement that files must be readable immediately when an auditor needs them.
★ When this WOULD be the correct answer
If the question stated that files are rarely accessed and a delay of several hours for retrieval is acceptable, and the priority is minimizing storage cost over access speed, then moving to Archive tier after 30 days would be correct.
Why candidates choose this
Candidates may assume Archive tier is the cheapest option and overlook the immediate readability requirement, focusing only on cost savings without considering access latency.
✗Store the files in Premium block blob storage and use snapshots for audit recovery.Wrong answer — click to see why▾
Why this is wrong here
Premium block blob storage is designed for low-latency and high-performance workloads, not for cost-effective long-term archival storage. Snapshots add additional costs and do not address the need for immediate readability without rehydration, making this option more expensive and unnecessary for quarterly audits.
★ When this WOULD be the correct answer
An application requires consistently low latency (single-digit milliseconds) for frequent read and write operations, such as a real-time data processing pipeline. In that scenario, Premium block blob storage would be the correct choice to meet performance requirements.
Why candidates choose this
Candidates may think Premium storage offers faster access and snapshots provide recovery, but they overlook the cost and the fact that the question prioritizes low cost after 30 days, not high performance.
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
Privileged Identity Management (PIM)
Key term
Lifecycle management
Lifecycle management is the process of overseeing data from its creation or capture through its use, maintenance, and eventual deletion or archiving.
Key term
Blob storage
Blob storage is a cloud service for storing large amounts of unstructured data, such as text or binary data, like documents, images, and videos.
About these practice questions
Courseiva writes every AZ-104 question from scratch — 1,049 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.