- A
Cool
Low latency, lower storage cost, designed for infrequent access.
- B
Hot
Low latency, but higher cost; suitable if access pattern is unpredictable.
- C
Premium
Why wrong: Optimized for high transaction rates, not cost-effective for infrequent access.
- D
Cold
Why wrong: Cold tier is not a standard access tier in Azure Blob Storage.
- E
Archive
Why wrong: Retrieval latency is hours, not milliseconds.
Question 728 of 851
Which Azure Blob Storage Tiers for Infrequent Access with Low Latency?
This DP-203 practice question tests your understanding of design and implement data storage. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which TWO Azure Blob Storage access tiers are suitable for data that must be available within milliseconds but is accessed infrequently (e.g., once per month)?
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
✓
Cool
Both the Hot and Cool access tiers provide millisecond latency, making them suitable for data that must be available quickly. While Hot is designed for frequently accessed data, it still meets the latency requirement for infrequently accessed data. Cool is optimized for infrequently accessed data (e.g., once per month) with a lower storage cost and higher access cost, making it the more cost-effective choice for such usage. Therefore, both tiers are appropriate for the described scenario.
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.
- ✓
Cool
Why this is correct
Low latency, lower storage cost, designed for infrequent access.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Hot
Why this is correct
Low latency, but higher cost; suitable if access pattern is unpredictable.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Premium
Why it's wrong here
Optimized for high transaction rates, not cost-effective for infrequent access.
- ✗
Cold
Why it's wrong here
Cold tier is not a standard access tier in Azure Blob Storage.
- ✗
Archive
Why it's wrong here
Retrieval latency is hours, not milliseconds.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'infrequent access' with 'cold storage' and select Cold or Archive, forgetting that Cool is the correct tier for infrequent access with millisecond latency requirements.
Detailed technical explanation
How to think about this question
Under the hood, Azure Blob Storage tiers are enforced at the blob level via the 'AccessTier' property, and the Cool tier uses the same underlying storage infrastructure as Hot but with different pricing and SLA guarantees (e.g., 99.9% availability for Cool vs. 99.99% for Hot). A real-world scenario is storing monthly sales reports that are queried on-demand by auditors; Cool tier provides the necessary low-latency access without the higher cost of Hot storage.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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 DP-203 question test?
Design and implement data storage — This question tests Design and implement data storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cool — Both the Hot and Cool access tiers provide millisecond latency, making them suitable for data that must be available quickly. While Hot is designed for frequently accessed data, it still meets the latency requirement for infrequently accessed data. Cool is optimized for infrequently accessed data (e.g., once per month) with a lower storage cost and higher access cost, making it the more cost-effective choice for such usage. Therefore, both tiers are appropriate for the described scenario.
What should I do if I get this DP-203 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 →
Same concept, more angles
1 more ways this is tested on DP-203
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. You need to store data that is rarely accessed but must be retained for 10 years for compliance. The data will be accessed occasionally for audits. Which Azure storage tier is the most cost-effective?
easy- ✓ A.Cool storage tier
- B.Hot storage tier
- C.Archive storage tier
- D.Premium storage tier
Why A: The Cool storage tier is designed for data that is infrequently accessed and stored for at least 30 days, making it a cost-effective choice for compliance data accessed occasionally over a 10-year period. It offers lower storage costs than Hot tier while still providing low-latency access for audits, unlike Archive which requires hours to rehydrate.
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Last reviewed: Jun 24, 2026
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