AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company requires minimal data loss and rapid recovery of its critical systems in the event of a disaster, but they operate with a limited budget for DR. Which of the following disaster recovery strategies would be most appropriate for this company's needs?
The Pilot Light strategy is correct because it involves having a minimal version of an environment always running in the cloud. This strategy allows a company to rapidly scale up this environment to handle full production load in the event of a disaster, ensuring minimum data loss and rapid recovery. The Warm Standby strategy is more costly as it involves a scaled-down but fully functional version of the environment. Both the Backup and Restore and Active-Active strategies do not fit the criteria as well as Pilot Light; Backup and Restore can involve more extensive data loss and longer recovery times, while Active-Active requires full production-scale environments in two locations, significantly increasing cost.
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What is a Pilot Light strategy in disaster recovery?
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How does the Warm Standby strategy differ from Pilot Light?
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Why might Backup and Restore be less effective in a disaster recovery scenario?