Which of the following must be carried out to ensure th…

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.