The correct answer is to use Hot tier for 30 days, then Cool tier until 90 days, then Archive tier until deletion after 7 years. This configuration balances cost and compliance by leveraging the Hot tier for initial frequent writes, transitioning to Cool tier for reduced storage costs during the infrequent-access period after 30 days, and finally moving to Archive tier—the lowest-cost storage—for long-term retention. The Archive tier supports rehydration within one hour using High Priority rehydration, meeting the availability requirement. On the AZ-204 exam, this scenario tests your understanding of lifecycle management with archive tier and rehydration, often appearing as a scenario where candidates mistakenly choose Cool tier for long-term retention or forget that Archive requires explicit rehydration. A common trap is assuming Archive data is instantly accessible; remember that rehydration time varies by priority. Memory tip: “Hot writes, Cool cools, Archive sleeps—rehydrate before it peeps.”
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.
You are designing a cost-effective solution to store log files that are accessed infrequently after 30 days. The logs must be retained for 7 years for compliance. Data must be available within 1 hour of a request. Which Azure Blob Storage access tier and lifecycle management rule should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Hot tier for 30 days, then Cool tier until 90 days, then Archive tier until deletion after 7 years.
Option D is correct because it balances cost and compliance: the Hot tier handles initial frequent writes, Cool tier reduces cost for infrequent access after 30 days, and Archive tier provides the lowest-cost storage for long-term retention while still allowing rehydration within 1 hour (via High Priority rehydration). The lifecycle rule deletes the blobs after 7 years to meet compliance requirements.
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.
✗
Use Hot tier initially, then move to Archive after 30 days, and delete after 7 years.
Why it's wrong here
Archive after 30 days is not cost-effective for data that may be accessed within the first 30 days.
✗
Use Archive tier immediately and set a lifecycle rule to delete after 7 years.
Why it's wrong here
Archive tier has high retrieval costs and latency if accessed within 30 days.
✗
Use Cool tier initially, then move to Archive after 30 days, and delete after 7 years.
Why it's wrong here
Cool tier initially may incur higher costs if data is accessed frequently.
✓
Use Hot tier for 30 days, then Cool tier until 90 days, then Archive tier until deletion after 7 years.
Why this is correct
This balances cost and retrieval time.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often overlook the 1-hour availability requirement and choose Archive tier immediately (Option B) or skip the Cool tier (Option A), not realizing that Archive rehydration can take up to 15 hours unless High Priority is explicitly used, and that Hot tier is more cost-effective for the initial high-write period.
Detailed technical explanation
How to think about this question
Azure Blob Storage lifecycle management evaluates rules daily based on the blob's last modification time. The Archive tier uses offline storage with a rehydration time of up to 15 hours for Standard Priority, but High Priority rehydration can complete within 1 hour, meeting the availability requirement. The Hot tier is optimized for high transaction rates (e.g., $0.018 per 10,000 writes) while Cool tier reduces storage cost ($0.01/GB vs Hot's $0.018/GB) but charges $0.01 per 10,000 read operations, making it ideal for infrequent access after 30 days.
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: Use Hot tier for 30 days, then Cool tier until 90 days, then Archive tier until deletion after 7 years. — Option D is correct because it balances cost and compliance: the Hot tier handles initial frequent writes, Cool tier reduces cost for infrequent access after 30 days, and Archive tier provides the lowest-cost storage for long-term retention while still allowing rehydration within 1 hour (via High Priority rehydration). The lifecycle rule deletes the blobs after 7 years to meet compliance requirements.
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.
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Question Discussion
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