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Question 96

A company runs an application that uses a MySQL database on an Amazon EC2 instance. The EC2 instance has a General Purpose SSD Amazon Elastic Block

Store (Amazon EBS) volume. The company made changes to the application code and now wants to perform load testing to evaluate the impact of the code changes.

A SysOps administrator must create a new MySQL instance from a snapshot of the existing production instance. This new instance needs to perform as similarly as possible to the production instance.

Which restore option meets these requirements?

    Correct Answer: C

    To ensure the new MySQL instance performs as similarly as possible to the production instance, the new instance should be created using the same type of EBS volume, which in this case is a General Purpose SSD EBS volume. While fast snapshot restore can speed up the restoration process, the question does not specify a requirement for reduced restoration time. Hence, using EBS snapshot restore to create a new General Purpose SSD EBS volume is sufficient and cost-effective.

Discussion
piavikOption: A

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.

xSohoxOption: A

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."

jiparkOption: C

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

princajenOption: A

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

s50600822

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

VerRiOption: A

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.

Maria2023Option: C

Athough we all

johnnyjin

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.

michaldavidOption: A

aaaaaa

Liongeek

Ans: A