A database application running on an EC2 instance requires a block storage volume that can sustain 64,000 IOPS and provides sub-millisecond latency. Which Amazon EBS volume type should be used?

Answer options:

General Purpose SSD (gp3)

Provisioned IOPS SSD (io2 Block Express)

Throughput Optimized HDD (st1)

Cold HDD (sc1)

How to approach this question

Identify the high IOPS requirement (>16,000). Only Provisioned IOPS (io1/io2) can handle this.

Full Answer

B.Provisioned IOPS SSD (io2 Block Express)✓ Correct

Provisioned IOPS SSD (io2 Block Express)

io2 Block Express volumes are designed to provide sub-millisecond latency and support up to 256,000 IOPS, making them ideal for the most demanding database workloads.

Common mistakes

Thinking gp3 can handle 64,000 IOPS (it caps at 16,000).

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