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Domain 2.3: Recommend a data storage solutionDomain 2Blob StorageLifecycle ManagementCost Optimization

AZ-305 · Question 23 · Domain 2.3: Recommend a data storage solution

A media company stores 500 TB of video files in an Azure Storage account.

Data access patterns show that videos are accessed frequently during the first 30 days after upload. From day 31 to 180, they are accessed rarely but must be available immediately if requested. After 180 days, they are kept only for compliance and are almost never accessed, but must be retained for 5 years.

You need to design a cost-optimized storage solution. What should you configure?

Answer options:

A.

An Azure Automation runbook that runs a PowerShell script daily to change the access tier of blobs based on their creation date.

B.

A Blob Lifecycle Management policy to move blobs to Cool tier after 30 days, and to Archive tier after 180 days.

C.

Set the default account access tier to Cool, and use a Lifecycle Management policy to move blobs to Archive after 180 days.

D.

Use Azure Data Factory to copy blobs older than 180 days to a separate Archive storage account.

How to approach this question

Identify the native Azure Storage feature designed to automate data tiering based on age.

Full Answer

B.A Blob Lifecycle Management policy to move blobs to Cool tier after 30 days, and to Archive tier after 180 days.✓ Correct
A Blob Lifecycle Management policy to move blobs to Cool tier after 30 days, and to Archive tier after 180 days.
Azure Blob Storage Lifecycle Management offers a rich, rule-based policy that you can use to transition your data to the best access tier and to expire data at the end of its lifecycle. By configuring a rule to move blobs to the Cool tier after 30 days, and to the Archive tier after 180 days, you minimize storage costs while meeting the immediate availability requirement for the first 180 days.

Common mistakes

Over-engineering the solution with Azure Automation or Data Factory. Always prefer native PaaS features over custom scripting.

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