Exam AWS Certified SysOps Administrator - Associate topic 1 question 96 discussion

Seems to me that A is for exam only. For real life it is C . There are no requirements on how fast EBS should provide its base performance. If QA team will start using new instance tomorrow - then A is unneeded overhead.

If you have answered C, remember that if the restore takes a long time for a production environment, then you might lose some data that has been modified or added to your original database during this long period of restore. Therefore, it is best to do it quickly and use FSR although FSR would cost slightly more.

A>>> FSR allows for faster recovery times when restoring EBS snapshots, which is important when you're performing load testing and need the new environment set up quickly.FSR enables the ability to restore data from an Amazon EBS snapshot and have it be immediately available for use with minimal delay, providing you with better performance during the recovery process. GP3 Volume:restoring the new MySQL instance on a gp3 volume would ensure the performance characteristics are as similar as possible to the production setup. This gives you a more accurate environment for load testing the impact of the code changes.gp3 volumes are suitable for most use cases where the performance requirements are not excessively high. C>>> While this option will restore a gp3 volume from the snapshot, it does not include Fast Snapshot Restore. Without FSR, the restoration process might take longer, which is less ideal for quickly setting up a new test environment.

A, After restoring the volume from the snapshot, data remains in S3 until the first read, causing initial performance degradation. Fast Snapshot Restore will preload the data upon restoration.

Athough we all

C, only Volumes provisioned with performance up to 64,000 IOPS and 1,000 MiB/s throughput receive the full performance benefit of fast snapshot restore.

Definitely A: https://docs.aws.amazon.com/prescriptive-guidance/latest/backup-recovery/restore.html#restore-snapshot "If an application accesses the volume where the data is not loaded, there is higher latency than normal while the data is loaded from Amazon S3. To avoid this impact for latency-sensitive applications, you have two options: -You can initialize the EBS volume. -For an additional charge, Amazon EBS supports fast snapshot restore, which eliminates the need initialize your volume."

A or C : there's no clue about fast or normal snapshot.

it's weird... one can argue we need fast snapshot so the latency between prod and this is minimal but ...

aaaaaa

Ans: A

The answer is A! https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-fast-snapshot-restore.html