QuestionQ107

Automation Design

A company’s data center needs a new disaster-recovery solution to host critical services. The solution can tolerate several hours of data loss because the services are regularly backed up to an offsite location. It must also provide availability within 24 hours. Because of strict policy requirements, the company wants to retain complete control over when the failover process takes place.

Which solution satisfies these requirements?

  • A hot standby
  • B warm standby
  • C cold standby
  • D active/active
Explanation

A cold standby recovery site is activated only after a disaster and typically restores services and data from offsite backups. It supports a recovery point objective measured in hours and a recovery time objective measured in hours, while allowing the organization to manually decide when to initiate failover. AWS defines RPO as the maximum acceptable data loss and RTO as the maximum acceptable delay before service restoration.

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