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PROFESSIONAL-CLOUD-ARCHITECT · Question #349

A large healthcare provider's primary electronic health record (EHR) application runs on Compute Engine instances with a Cloud SQL for PostgreSQL database, all located in the us-west1 region. A new…

The correct answer is A. Deploy active managed instance groups (MIGs) in both us-west1 and us-east1, fronted by a. Running active managed instance groups in two regions behind a global load balancer ensures the application layer can fail over immediately to a healthy region. Using a cross-region Cloud SQL read replica that is continuously replicated meets the 15-minute RPO requirement, and…

Submitted by fatima_kr· Mar 30, 2026Ensuring solution and operations reliability

Question

A large healthcare provider's primary electronic health record (EHR) application runs on Compute Engine instances with a Cloud SQL for PostgreSQL database, all located in the us-west1 region. A new regulatory mandate requires you to implement and document a business continuity plan (BCP). This plan must ensure that the EHR application can be fully recovered and operational in a different geographical region with a recovery time objective (RTO) of two hours and a recovery point objective (RPO) of 15 minutes. You need to design a disaster recovery strategy that meets these strict BCP requirements. What should you do?

Options

  • ADeploy active managed instance groups (MIGs) in both us-west1 and us-east1, fronted by a
  • BUse Terraform to define the application's compute infrastructure. During a disaster, configure the
  • CTake daily snapshots of the Compute Engine disks and Cloud SQL database. Copy these
  • DDeploy a regional MIG in us-west1 for high availability, and rely on the Google Cloud SLA to

How the community answered

(52 responses)
  • A
    60% (31)
  • B
    6% (3)
  • C
    12% (6)
  • D
    23% (12)

Explanation

Running active managed instance groups in two regions behind a global load balancer ensures the application layer can fail over immediately to a healthy region. Using a cross-region Cloud SQL read replica that is continuously replicated meets the 15-minute RPO requirement, and promoting the replica during an outage enables recovery well within the 2-hour RTO. This design provides a documented, production-ready disaster recovery architecture that satisfies strict business continuity requirements.

Topics

#disaster recovery#RTO/RPO#multi-region HA#business continuity

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