A database running on an EC2 instance requires block storage. The workload is highly transactional and requires sustained performance of 64,000 IOPS. Which TWO EBS volume types can meet this requirement? (Select TWO.)

Answer options:

gp2 (General Purpose SSD)

gp3 (General Purpose SSD)

io2 Block Express

st1 (Throughput Optimized HDD)

io1 (Provisioned IOPS SSD)

How to approach this question

Know the IOPS limits of EBS volume types. >16,000 IOPS requires Provisioned IOPS (io1/io2).

Full Answer

io2 Block Express, io1

General Purpose SSDs (gp2/gp3) have a maximum limit of 16,000 IOPS. For workloads requiring 64,000 IOPS, you must use Provisioned IOPS SSDs like io1 (up to 64k IOPS) or io2 Block Express (up to 256k IOPS).

Common mistakes

Thinking gp3 can scale to 64,000 IOPS.

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