SAP-C02 Question 86
Single answerA company runs a critical e-commerce application in a single AWS Region. To meet compliance requirements, the company must implement a disaster recovery (DR) strategy that ensures the application is operational in another AWS Region within minutes of a failure. The solution should optimize cost but still allow for rapid recovery. Which disaster recovery strategy is MOST appropriate for this scenario?
- A
Backup and restore
- B
Pilot light
- C
Warm standby
- D
Multi-site active-active
Show answer and explanation
Correct answer: C
Explanation
Warm standby is the best fit because it provides a balance between cost and recovery time. A scaled-down version of the application runs in the secondary Region, ensuring quicker failover during a disaster. This meets the requirement to have the application operational within minutes while optimizing costs compared to multi-site active-active.
- A. Incorrect.
Backup and restore is the least expensive DR strategy but does not meet the requirement of ensuring the application is operational within minutes, as restoring from backups typically takes hours.
- B. Incorrect.
Pilot light keeps a minimal version of the application running in the secondary Region, but scaling it up to full production would take more time than the 'minutes' requirement specified in the scenario.
- C. Correct.
Warm standby is an appropriate strategy for this scenario because it provides a partially scaled-down version of the application that can be quickly scaled up to full capacity within minutes, balancing cost and recovery time.
- D. Incorrect.
Multi-site active-active ensures zero downtime by running full workloads in multiple Regions simultaneously, but it is significantly more expensive and not necessary to meet the compliance and recovery requirements stated in the scenario.