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Difficulty: EasyAWS Storage Services

A development team is deploying a containerized application across multiple Linux-based Amazon EC2 instances. The application requires a shared storage solution that supports concurrent read and write access from all instances using the standard Network File System (NFS) protocol. Which AWS storage service should the team select for this application?

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

Answer

Amazon Elastic File System (Amazon EFS)
Amazon Elastic File System (Amazon EFS) provides a fully managed, scalable file system that supports the Network File System (NFS) protocol and allows concurrent read and write access from multiple Amazon EC2 instances simultaneously.

Step-by-Step Solution

1
Analyze the requirements of the application, which are shared access from multiple Amazon EC2 instances and support for the standard Network File System (NFS) protocol.
Identify that a file storage service supporting NFS and concurrent access is needed.
This narrows down the choice to AWS file storage solutions rather than block or object storage.
2
Evaluate the available AWS storage services against these requirements.
Determine that Amazon Elastic File System (Amazon EFS) is the managed NFS file system service that allows multiple EC2 instances to connect simultaneously.
This confirms Amazon Elastic File System (Amazon EFS) as the correct choice, while Amazon EBS, Amazon S3, and Amazon EC2 Instance Store do not meet these criteria.

Key Concept

AWS file storage options supporting concurrent access and NFS protocol
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Topics

AWS Storage Services

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