The Archive tier is the correct choice because it is designed specifically for archival data that is accessed only a few times per year and can tolerate a retrieval latency of up to 15 hours, matching the requirement exactly. This tier offers the lowest storage cost among all Azure Blob Storage access tiers, making it optimal for long-term, infrequently accessed data where cost savings outweigh the need for rapid access. On the Microsoft Azure Developer Associate AZ-204 exam, this concept tests your understanding of how to select the appropriate blob access tier based on access patterns and retrieval latency, often appearing in scenario-based questions where the trap is choosing the Cool tier (which has lower retrieval time but higher storage cost than Archive). A key memory tip is to associate “Archive” with “Arctic” — data that is frozen and rarely touched, requiring hours to thaw, just like the 15-hour retrieval window.
AZ-204 Develop for Azure storage Practice Question
This AZ-204 practice question tests your understanding of develop for azure 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.
A company stores archival data in Azure Blob Storage. The data is accessed only a few times per year, and retrieval can take up to 15 hours. Which blob access tier minimizes storage costs while meeting these requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Archive tier
The Archive tier is the correct choice because it is designed for data that is rarely accessed (a few times per year) and has a retrieval latency of up to 15 hours, which matches the requirement. It offers the lowest storage cost among Azure Blob Storage tiers, making it optimal for long-term archival data where infrequent access and delayed retrieval are acceptable.
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.
✗
Hot tier
Why it's wrong here
Hot tier optimizes for frequent access but has the highest storage cost, unsuitable for rare access.
✗
Cool tier
Why it's wrong here
Cool tier is for data accessed infrequently (about once a month) but still has higher cost than Archive.
✓
Archive tier
Why this is correct
Archive tier offers the lowest storage cost and supports retrieval within 1-15 hours, fitting the scenario.
Related concept
Read the scenario before looking for a memorised answer.
✗
Premium tier
Why it's wrong here
Premium tier is for low-latency, high-frequency access, with the highest cost.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the Cool tier's 'infrequent access' with 'archival access,' failing to recognize that Cool tier still provides millisecond retrieval and higher storage costs, while the Archive tier alone meets the 15-hour retrieval requirement and minimizes storage costs.
Detailed technical explanation
How to think about this question
The Archive tier stores data offline, meaning blobs are not immediately accessible via standard read/write operations; they must be rehydrated to the Hot or Cool tier using a Set Blob Tier operation, which can take up to 15 hours depending on the priority (Standard or High). Under the hood, Azure uses a distributed storage system where Archive data is stored on tape-like media or low-cost HDDs, with metadata kept online for quick listing. In a real-world scenario, a company might use lifecycle management policies to automatically transition blobs from Cool to Archive after 90 days, ensuring cost savings without manual intervention.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Develop for Azure storage — This question tests Develop for Azure storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Archive tier — The Archive tier is the correct choice because it is designed for data that is rarely accessed (a few times per year) and has a retrieval latency of up to 15 hours, which matches the requirement. It offers the lowest storage cost among Azure Blob Storage tiers, making it optimal for long-term archival data where infrequent access and delayed retrieval are acceptable.
What should I do if I get this AZ-204 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 →
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 terabytes of archival data that must be retained for 10 years. The data is accessed once or twice per year. You need to minimize storage costs. Which Azure Storage tier should you use?
easy
A.Cool
B.Hot
✓ C.Archive
D.Premium
Why C: The Archive tier is designed for data that is rarely accessed (a few times per year or less) and has a flexible retrieval latency of several hours, making it ideal for long-term retention of terabytes of archival data for 10 years at the lowest storage cost. It offers the lowest per-GB storage price among Azure Blob Storage tiers, directly meeting the requirement to minimize costs for infrequently accessed data.
Last reviewed: Jun 11, 2026
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