AZ-104 Implement and Manage Storage Practice Question
A records team stores blobs that are read often during the first month and then rarely accessed later, but the files must stay online the whole time. Which two access tiers should they use for the active and inactive data sets? Select two.
⚠ Common exam trap
Candidates often confuse the Cool tier with the Archive tier, assuming 'infrequent access' means offline, or they mistakenly think the Cold tier (which is offline) satisfies the 'online' requirement, but the question explicitly states files must stay online the whole time.
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
✓
Hot, because it is optimized for frequent reads and online access to active data.
The Hot access tier is optimized for frequent reads and provides low-latency online access, making it ideal for the active data set that is read often during the first month. Option B is correct because the Cool access tier is designed for infrequently accessed data that must remain online, with lower storage costs but higher access costs, perfectly matching the rarely accessed but always online requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Hot, because it is optimized for frequent reads and online access to active data.
Why this is correct
Hot is the best fit for data that is accessed often and needs immediate online availability.
- ✓
Cool, because it is designed for infrequent access while still keeping blobs online.
Why this is correct
Cool is appropriate for older files that are still online but read less often.
- ✗
Archive, because it is best for data that must be opened immediately by users.
Why it's wrong here
Archive is offline storage and requires rehydration before the blob can be read again.
When this WOULD be correct
A question that asks for the lowest-cost storage tier for data that is rarely accessed and can tolerate hours of retrieval time, such as long-term backup archives or compliance data that must be retained but not frequently read.
- ✗
Premium block blob, because it is the standard tier for long-term retention and low-cost storage.
Why it's wrong here
Premium block blob is a performance-oriented option, not the usual choice for this access pattern.
When this WOULD be correct
A question requiring low-latency storage for high-frequency transactions, such as a real-time analytics application that needs fast read/write access to block blobs, would make Premium block blob the correct choice.
- ✗
Cold, because it is intended for data that can stay offline until someone requests it.
Why it's wrong here
Cold is still online storage, but this option suggests offline behavior, which does not match the requirement.
When this WOULD be correct
A question where data is rarely accessed, can tolerate higher latency, and must be stored for at least 30 days, but does not require immediate online access. For example: 'A company archives old logs that are accessed less than once a year and can be retrieved with a delay of several hours.'
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.
✓Hot, because it is optimized for frequent reads and online access to active data.Correct answer▾
Why this is correct
Hot is the best fit for data that is accessed often and needs immediate online availability.
✗Archive, because it is best for data that must be opened immediately by users.Wrong answer — click to see why▾
Why this is wrong here
The Archive tier is for data that is rarely accessed and has a retrieval latency of up to 15 hours; it is not for immediate access. The question requires blobs to stay online, but Archive tier data is offline until rehydrated.
★ When this WOULD be the correct answer
A question that asks for the lowest-cost storage tier for data that is rarely accessed and can tolerate hours of retrieval time, such as long-term backup archives or compliance data that must be retained but not frequently read.
Why candidates choose this
Candidates may confuse 'Archive' with a long-term retention tier and assume it can be accessed immediately, or they may think 'archive' implies online storage similar to a file archive.
✗Premium block blob, because it is the standard tier for long-term retention and low-cost storage.Wrong answer — click to see why▾
Why this is wrong here
Premium block blob accounts are designed for high transaction rates and low latency, not for long-term retention or low-cost storage. They are more expensive than standard tiers and are not optimized for infrequently accessed data.
★ When this WOULD be the correct answer
A question requiring low-latency storage for high-frequency transactions, such as a real-time analytics application that needs fast read/write access to block blobs, would make Premium block blob the correct choice.
Why candidates choose this
Candidates may confuse 'premium' with 'high durability' or assume it is a standard tier for all scenarios, overlooking its specific use case for high-performance workloads and higher cost.
✗Cold, because it is intended for data that can stay offline until someone requests it.Wrong answer — click to see why▾
Why this is wrong here
The Cold tier is designed for data that can be stored for up to 30 days with infrequent access, but it is not intended for data that must stay online; it has a higher latency and lower availability than Hot or Cool tiers. The question requires blobs to stay online, which Cold does not guarantee.
★ When this WOULD be the correct answer
A question where data is rarely accessed, can tolerate higher latency, and must be stored for at least 30 days, but does not require immediate online access. For example: 'A company archives old logs that are accessed less than once a year and can be retrieved with a delay of several hours.'
Why candidates choose this
Candidates may confuse 'Cold' with 'Cool' due to similar names, or assume that any tier with 'cold' in the name is suitable for infrequently accessed data that remains online, overlooking the specific latency and availability characteristics of the Cold tier.
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 |
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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.