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Which of the following disaster recovery deployment mechanisms that has the lowest downtime?
A
Pilot light
B
Warm standby
C
Backup Restore
D
DevOps
Explanation:
Warm standby has the lowest downtime among the listed disaster recovery deployment mechanisms.
Backup Restore: Highest downtime - involves restoring from backups after a disaster occurs
Pilot Light: Moderate downtime - core infrastructure is running but needs scaling up
Warm Standby: Lowest downtime - minimal infrastructure is always running and ready to scale
DevOps: Not a disaster recovery mechanism - refers to development operations practices
Warm standby maintains a scaled-down version of the environment that can be quickly scaled up during a disaster
This approach provides faster recovery times compared to pilot light or backup restore methods
The AWS documentation shows that warm standby is at the end of the spectrum with the least downtime for users
For more information on AWS disaster recovery techniques, refer to: https://aws.amazon.com/blogs/aws/new-whitepaper-use-aws-for-disaster-recovery/