A company runs critical Azure VMs. They want to protect against accidental deletion or corruption of data by implementing a retention policy for Azure Backup. They need to keep daily backups for 30 days, weekly backups for 12 weeks, and monthly backups for 12 months. Which Azure Backup feature should they configure?

Immutable vault

Immutable vault prevents backup data from being deleted before its retention period, but it does not allow you to specify the retention rules (daily, weekly, monthly durations).

Backup tiering

Backup tiering moves older backups to the archive tier to reduce cost, but it does not by itself enforce the retention durations. It complements a backup policy that defines retention.

Soft delete

Soft delete provides a safety net by retaining deleted backups for a default period (14 days), but it does not allow configuring different retention durations for daily, weekly, and monthly backups.

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: Backup policy with long-term retention — Azure Backup’s backup policy allows you to define a retention policy with multiple retention rules: daily, weekly, monthly, and yearly. You can set the retention duration for each rule. Long-term retention combines multiple rules in one policy. Immutable vault prevents deletion of backups, but does not define retention durations. Soft delete provides a grace period for deleted backup data. Backup tiering moves data to archive tier for long-term retention, but the policy rules are defined in the backup policy itself.

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.