A company stores website static assets in Azure Blob Storage. The assets are updated weekly and must be available for immediate access for 30 days. After 30 days, older versions can be moved to the Cool tier to save costs but must still be accessible within seconds. They want an automated solution. What should they configure?

Set the access tier to Cool on the container

This would move all blobs to Cool immediately, not after 30 days, which does not meet the requirement of keeping blobs hot for the first 30 days.

Manually change the access tier every 30 days

Manual operations are not automated and are prone to errors. Azure provides automated lifecycle management to handle this at scale.

Use Azure Policy to enforce tier changes

Azure Policy is for enforcing compliance rules (e.g., tagging), not for automating data tier transitions based on age.

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: Use Azure Blob Storage lifecycle management rules — Azure Blob Storage lifecycle management allows you to define rules that automatically move blobs to cooler tiers (Cool or Archive) based on age. After 30 days, a rule can move blobs to the Cool tier, ensuring they remain accessible with low latency. Manually changing tiers is not scalable, and setting the Cool tier on a container would affect all blobs immediately, not after 30 days. Azure Policy enforces compliance, not data tier transitions.

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.