A SysOps Administrator Is Implementing Automated I/O Load Performance Testing

question 565

Multiple Choice

A SysOps administrator is implementing automated I/O load performance testing as part of the continuous integration/continuous delivery (CI/CD) process for an application. The application uses an Amazon Elastic Block Store (Amazon EBS) Provisioned IOPS volume for each instance that is restored from a snapshot and requires consistent I/O performance. During the initial tests, the I/O performance results are sporadic. The SysOps administrator must ensure that the tests yield more consistent results. Which actions could the SysOps administrator take to accomplish this goal? (Choose two.)

• A) Restore the EBS volume from the snapshot with fast snapshot restore enabled.
• B) Restore the EBS volume from the snapshot using the cold HDD volume type.
• C) Restore the EBS volume from the snapshot and pre-warm the volume by reading all of the blocks.
• D) Restore the EBS volume from the snapshot and configure encryption.
• E) Restore the EBS volume from the snapshot and configure I/O block size at random.

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Definitions:

ATC

A restated definition for Average Total Cost; it implies the cost per unit produced when both fixed and variable costs are accounted for across all levels of output.

AFC

Average Fixed Cost, which is the fixed costs of production spread out over the number of units produced, declining as production increases.

Average Total Cost

The total costs of production divided by the total output, giving the cost per unit of output calculated by adding fixed and variable costs and dividing by the number of units produced.

Fixed Cost

Costs that do not fluctuate with the level of production or sales, such as rent, salaries, and insurance premiums, remaining constant regardless of the output level.