SAP-C02 Question 379
Single answerYour company is hosting a critical financial application on AWS. The application requires a disaster recovery (DR) plan that ensures minimal downtime and data loss in the event of a regional outage. The company has strict Recovery Time Objective (RTO) and Recovery Point Objective (RPO) requirements of 1 hour each. Which disaster recovery strategy should you recommend to meet these requirements?
- A
Backup and Restore
- B
Pilot Light
- C
Warm Standby
- D
Multi-Region Active-Active
Show answer and explanation
Correct answer: C
Explanation
Warm Standby is the most appropriate disaster recovery strategy for this scenario. It provides a balance between cost and the ability to meet the strict RTO and RPO requirements of 1 hour. The scaled-down environment in a secondary region ensures faster recovery compared to Backup and Restore or Pilot Light, while being less costly and complex than a Multi-Region Active-Active setup.
- A. Incorrect.
Backup and Restore is a cost-effective option, but it typically involves higher RTO and RPO values because restoring data from backups and provisioning infrastructure can take several hours.
- B. Incorrect.
Pilot Light involves maintaining a minimal version of the core system in a secondary region. While it reduces some downtime, it still requires time to scale up resources to full production capacity, making it unsuitable for a 1-hour RTO/RPO requirement.
- C. Correct.
Warm Standby keeps a scaled-down version of the application running in another region. It allows for faster recovery by quickly scaling up the standby environment to handle production traffic, making it suitable for the given RTO and RPO requirements.
- D. Incorrect.
Multi-Region Active-Active is designed for zero downtime and zero data loss by running applications simultaneously in multiple regions. However, this approach is far more expensive and exceeds the requirements of a 1-hour RTO and RPO.