SAP-C02 Question 211
Single answerA financial services company needs to design a disaster recovery (DR) solution for its critical applications hosted in AWS. The company requires an RTO (Recovery Time Objective) of less than 1 hour and an RPO (Recovery Point Objective) of less than 5 minutes. Cost is a consideration, but the solution must balance cost-effectiveness with meeting the RTO and RPO requirements. Which disaster recovery option is the MOST suitable for this scenario?
- 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 because it provides a cost-effective solution while meeting the stringent RTO and RPO requirements. A scaled-down environment is continuously running in a secondary Region, enabling quick scaling during a disaster. This solution is more cost-effective than Multi-Region Active-Active and more performant than Backup and Restore or Pilot Light.
- A. Incorrect.
Backup and Restore is the most cost-effective DR strategy but does not meet the RTO and RPO requirements of less than 1 hour and 5 minutes, respectively, as data restoration can take several hours.
- B. Incorrect.
Pilot Light keeps critical systems minimally running, but scaling up from a pilot light state to full production typically takes longer than 1 hour, failing to meet the company’s RTO requirement.
- C. Correct.
Warm Standby strikes a balance between cost and performance, as a scaled-down version of the environment is always running in a secondary Region. This ensures that the RTO of less than 1 hour and RPO of less than 5 minutes can be met by scaling up resources quickly.
- D. Incorrect.
Multi-Region Active-Active provides the lowest RTO and RPO since both Regions are fully active. However, this is significantly more expensive and is not necessary to meet the company’s requirements as Warm Standby is sufficient.