Amazon
SOA-C02 · Question #443
A company runs a workload on an Amazon EC2 instance. The workload needs a temporary cache that contains data that changes frequently. The workload does not need to retain the cache across instance…
The correct answer is D. EC2 instance store. The "Instance Store" volume is actually stored in local memory, which is why it is non-persistent but will also always have higher performance than any attached EBS volume.
Submitted by katya_ua· Mar 30, 2026Cost and Performance Optimization
Question
A company runs a workload on an Amazon EC2 instance. The workload needs a temporary cache that contains data that changes frequently. The workload does not need to retain the cache across instance restarts. Which storage option will provide the HIGHEST performance for the cache?
Options
- AGeneral Purpose SSD (gp3) Amazon Elastic Block Store (Amazon EBS) volume
- BProvisioned IOPS SSD (io2) Amazon Elastic Block Store (Amazon EBS) volume
- CThroughput Optimized HDD (st1) Amazon Elastic Block Store (Amazon EBS) volume
- DEC2 instance store
How the community answered
(31 responses)- A6% (2)
- B10% (3)
- D84% (26)
Explanation
The "Instance Store" volume is actually stored in local memory, which is why it is non-persistent but will also always have higher performance than any attached EBS volume.
Topics
#EC2 instance store#ephemeral storage#storage performance#temporary cache
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