As Part of Your Continuous Deployment Process, Your Application Undergoes

As part of your continuous deployment process, your application undergoes an I/O load performance test before it is deployed to production using new AMIs. The application uses one Amazon Elastic Block Store (EBS) PIOPS volume per instance and requires consistent I/O performance. Which of the following must be carried out to ensure that I/O load performance tests yield the correct results in a repeatable manner?

A) Ensure that the I/O block sizes for the test are randomly selected.
B) Ensure that the Amazon EBS volumes have been pre-warmed by reading all the blocks before the test.
C) Ensure that snapshots of the Amazon EBS volumes are created as a backup.
D) Ensure that the Amazon EBS volume is encrypted.
E) Ensure that the Amazon EBS volume has been pre-warmed by creating a snapshot of the volume before the test.

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