A database running on an EC2 instance requires an EBS volume. The database workload requires 10,000 IOPS. The company wants to provision this performance at the lowest possible cost.<br/><br/>Which EBS volume type should be selected?

Answer options:

General Purpose SSD (gp2)

General Purpose SSD (gp3)

Provisioned IOPS SSD (io2)

Throughput Optimized HDD (st1)

How to approach this question

Understand the difference between gp2, gp3, and io2 pricing and performance limits.

Full Answer

B.General Purpose SSD (gp3)✓ Correct

Amazon EBS gp3 volumes allow you to provision performance (IOPS and throughput) independent of storage capacity. They support up to 16,000 IOPS. They are up to 20% cheaper per GB than gp2 volumes.

Common mistakes

Choosing io2 automatically when seeing '10,000 IOPS', without realizing gp3 can handle up to 16,000 IOPS at a lower cost.

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