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Difficulty: MediumAWS Storage Services

A gaming company is deploying an application on Amazon EC2 instances that processes real-time player leaderboards. The application requires high-performance, lowest-latency block storage to serve as temporary caching and scratch space. If an instance terminates, the cached data can be easily recreated and does not need to persist. Which AWS storage option should the company select to meet these requirements at no additional cost?

  1. A
    Amazon Elastic Block Store (EBS)
  2. Amazon EC2 Instance StoreAnswer
  3. C
    Amazon Elastic File System (EFS)
  4. D
    Amazon Simple Storage Service (S3)

Answer

Amazon EC2 Instance Store
Amazon EC2 Instance Store provides temporary block-level storage that is physically attached to the host computer. This physical attachment delivers the lowest possible latency for temporary caching and scratch space, and its cost is included in the EC2 instance pricing, meaning it incurs no additional storage charges.

Step-by-Step Solution

1
Identify the storage requirements: block storage, lowest latency, temporary (non-persistent) scratch space, and no additional cost.
The solution must be physically attached block storage that does not charge extra for storage capacity.
This filters out network-attached storage services which have higher latency and additional charges.
2
Evaluate the options against these criteria.
Amazon EC2 Instance Store is physically attached, temporary, and included in the instance cost. Amazon EBS, EFS, and S3 are network-based and incur extra charges.
To find the service that specifically matches temporary block storage with zero additional cost.

Key Concept

Differentiating between temporary local block storage (Instance Store) and persistent network-attached storage options (EBS, EFS, S3).
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Topics

AWS Storage Services

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