Which option best describes cross-region replication in disaster recovery planning?

Which option best describes cross-region replication in disaster recovery planning?

• A. It reduces data redundancy.
• B. It prevents backups.
• C. It enables failover to another region in case of regional outage.
• D. It complicates recovery with no benefits.

Answer: (C)

Cross-region replication is about keeping copies of data in a different geographic region so your applications can keep running even if the primary region goes down. The main value is that, when a regional outage occurs, you have a ready-to-use replica in another region and can fail over to it, maintaining service continuity and reducing downtime. This is central to disaster recovery planning because it directly provides an alternate site to take over during failures, aligning with recovery objectives like RTO and RPO. It doesn’t reduce data redundancy by itself; it creates additional redundancy across regions. It isn’t about preventing backups—backups and replication serve different purposes, and replication complements backups by supporting quick failover. And it isn’t about adding complexity with no benefits; the benefit is a defined recovery path that improves resilience.

Cross-region replication is about keeping copies of data in a different geographic region so your applications can keep running even if the primary region goes down. The main value is that, when a regional outage occurs, you have a ready-to-use replica in another region and can fail over to it, maintaining service continuity and reducing downtime. This is central to disaster recovery planning because it directly provides an alternate site to take over during failures, aligning with recovery objectives like RTO and RPO.

It doesn’t reduce data redundancy by itself; it creates additional redundancy across regions. It isn’t about preventing backups—backups and replication serve different purposes, and replication complements backups by supporting quick failover. And it isn’t about adding complexity with no benefits; the benefit is a defined recovery path that improves resilience.