Professional Cloud ArchitectDemo

By Google · Question Mode

QuestionQ28

Designing and planning a cloud solution architecture

Your company is designing its application landscape on Compute Engine. When a zonal outage occurs, the application must be restored in another zone as quickly as possible with the most recent application data. You need to design a solution that meets this requirement. What should you do?

  • A Create a snapshot schedule for the disk containing the application data. Whenever a zonal outage occurs, use the latest snapshot to restore the disk in the same zone.
  • B Configure the Compute Engine instances with an instance template for the application, and use a regional persistent disk for the application data. Whenever a zonal outage occurs, use the instance template to spin up the application in another zone in the same region. Use the regional persistent disk for the application data.
  • C Create a snapshot schedule for the disk containing the application data. Whenever a zonal outage occurs, use the latest snapshot to restore the disk in another zone within the same region.
  • D Configure the Compute Engine instances with an instance template for the application, and use a regional persistent disk for the application data. Whenever a zonal outage occurs, use the instance template to spin up the application in another region. Use the regional persistent disk for the application data.
Explanation

Regional Persistent Disk synchronously replicates disk data between two zones in the same region, providing the current data and enabling failover after a zonal outage. An instance template supports quickly creating the replacement Compute Engine instance in the healthy zone. Snapshot-based recovery can lose changes made after the last snapshot and adds restoration time; regional disks are not a cross-region failover mechanism.

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