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PROFESSIONAL-CLOUD-ARCHITECT · Question #352

A retail company s most critical application is its online payment processing system. The business has a requirement that the system must be able to survive a complete zonal outage while minimizing co

The correct answer is B. Deploy the application on a regional MIG to provide high availability across multiple zones in the. A regional managed instance group distributes instances across multiple zones within a region, so the application remains available even if an entire zone fails. This meets the zonal-outage survivability requirement while avoiding the higher cost and operational complexity of a m

Submitted by fatema_kw· Mar 30, 2026Designing and planning a cloud solution architecture

Question

A retail company s most critical application is its online payment processing system. The business has a requirement that the system must be able to survive a complete zonal outage while minimizing cost. You need a design solution that can handle a zonal failure. What should you do?

Options

  • ADeploy the application in an active-active configuration using managed instance groups (MIGs) in
  • BDeploy the application on a regional MIG to provide high availability across multiple zones in the
  • CConfigure the regional MIG to use only Spot VMs to aggressively minimize operational costs
  • DDeploy the application on Compute Engine instances across multiple regions, and rely on daily

How the community answered

(36 responses)
  • A
    11% (4)
  • B
    81% (29)
  • C
    3% (1)
  • D
    6% (2)

Explanation

A regional managed instance group distributes instances across multiple zones within a region, so the application remains available even if an entire zone fails. This meets the zonal-outage survivability requirement while avoiding the higher cost and operational complexity of a multi- region active-active architecture.

Topics

#managed instance groups#zonal failover#high availability#regional MIG

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