AZ-305 Question 95
Select 2You are designing a data storage solution for a global e-commerce platform that processes critical financial transactions. The solution must provide cross-region replication, protect against accidental deletions, and maximize durability for mission-critical data. Which two solutions should you recommend?
- A
Use Locally Redundant Storage (LRS) with advanced threat protection enabled.
- B
Use Geo-Redundant Storage (GRS) with blob soft delete enabled.
- C
Use Zone-Redundant Storage (ZRS) with read access asynchronously configured.
- D
Use Geo-Zone-Redundant Storage (GZRS) with point-in-time restore enabled.
Show answer and explanation
Correct answers: B, D
Explanation
To meet cross-region durability and accidental deletion protection requirements, use GRS or GZRS combined with blob soft delete or point-in-time restore. GRS and GZRS ensure data is available even if the primary region suffers an outage, while blob soft delete and point-in-time restore let you recover data after unintentional deletions. For more details, see the official documentation: https://docs.microsoft.com/azure/storage/common/storage-redundancy and https://docs.microsoft.com/azure/storage/blobs/soft-delete-blob-overview.
- A. Incorrect.
Option 1: LRS only replicates data within a single data center in one region, so it does not provide cross-region redundancy. Advanced threat protection helps guard against malicious activity but does not address durability or restore needs across regions.
- B. Correct.
Option 2: GRS replicates your data asynchronously to a secondary geographic location for disaster recovery, and enabling blob soft delete protects against accidental deletions by allowing you to restore deleted blobs within a specified retention period.
- C. Incorrect.
Option 3: ZRS replicates data synchronously across availability zones in the same Azure region. While this offers zone-level redundancy, it does not extend across regions by itself. There is no built-in read access geo-redundancy solely with ZRS.
- D. Correct.
Option 4: GZRS combines zone redundancy within a primary region with asynchronous replication to a secondary region, ensuring high durability. Point-in-time restore further helps recover data if it is accidentally deleted or corrupted within the primary storage.