A cloud application requires read-after-write consistency across multiregion writes. Which StorageGRID consistency level must be used?

A cloud application requires read-after-write consistency across multiregion writes. Which StorageGRID consistency level must be used?

• A. Available
• B. Balanced
• C. Strong-global
• D. Strong-site

Answer: (C)

To satisfy read-after-write across multiple regions, you need a global strong consistency model. Strong-global ensures that once a write is committed, every region sees that update, so a read from any region returns the latest value. The other modes don’t guarantee this across regions: strong-site only enforces consistency within a single site, while available or balanced trade stronger consistency for latency or availability.

To satisfy read-after-write across multiple regions, you need a global strong consistency model. Strong-global ensures that once a write is committed, every region sees that update, so a read from any region returns the latest value. The other modes don’t guarantee this across regions: strong-site only enforces consistency within a single site, while available or balanced trade stronger consistency for latency or availability.