Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company ingests IoT sensor data into Azure Blob Storage. Data is written frequently and accessed rarely after the first 24 hours. The company must retain the data for exactly 90 days for compliance. They want to minimize storage costs by automatically moving data to cheaper tiers as soon as possible. Which lifecycle management policy should they implement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Move to Cool tier immediately (0 days) and then to Archive after 30 days
Lifecycle management cannot be triggered at 0 days; the minimum is 1 day. You must also satisfy the 90-day retention, which the Archive tier supports, but the immediate move to Cool is not possible.
B
Best answer
Move to Cool tier after 1 day and then to Archive after 30 days
This policy moves data to Cool after 1 day (when access frequency drops) and then to Archive after 30 days, minimizing costs while meeting the 90-day retention requirement. Archive is the cheapest tier for long-term storage.
C
Distractor review
Move to Archive tier after 1 day
While the Archive tier is cheap, moving directly to Archive after 1 day is not optimal because data might still be accessed occasionally during the first 30 days, and early deletion or unnecessary retrieval costs could apply. The recommended practice is to use Cool as an intermediate tier.
D
Distractor review
Move to Cool tier after 30 days and to Archive after 90 days
This policy would keep data in the Hot tier for 30 days, incurring higher costs for the first month, and then move to Cool for the remaining 60 days. It does not leverage the low cost of Archive for the bulk of the retention period.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company is designing hub-and-spoke networking. Spoke VNets must use a central Azure Firewall for outbound internet traffic. Which two configurations are required?
Question 2
A company is designing private access to a PaaS database from workloads in a VNet. The database should not be reachable over its public endpoint. What should be recommended?
Question 3
A data platform must support analytical queries over petabytes of files in a data lake, while preserving hierarchical namespaces and fine-grained ACLs. Which storage service should you design around?
Question 4
A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?
Question 5
A hub-and-spoke Azure network must centralize outbound inspection and still allow spokes to resolve private endpoint DNS names. Which two components are commonly required? (Choose 2.)
Question 6
A multinational company uses Microsoft Entra ID and several Azure subscriptions. Security administrators need to review privileged role assignments every month and require justification for continued access. Which design should be recommended?
FAQ
Questions learners often ask
What does this AZ-305 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Move to Cool tier after 1 day and then to Archive after 30 days — Azure Blob Storage lifecycle management allows you to transition blobs to cooler tiers after a specified number of days. To minimize cost, data should move from Hot to Cool after 1 day (since rare access after 24 hours) and then to Archive after 30 days (since Archive is the cheapest tier for long-term retention). However, data must be retained for 90 days, so the Archive tier is suitable for the remaining period. Moving directly to Cool after 0 days is not allowed; you need at least 1 day. The correct policy is: move to Cool after 1 day, then move to Archive after 30 days from last modification.
What should I do if I get this AZ-305 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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