Examkin

Question

Difficulty: EasyHigh-Performing and Scalable Storage Solutions

A development team is deploying a collaborative document management application on 33 Amazon EC2 instances. The application requires a shared file storage solution that allows all instances to read and write files concurrently with low latency. Which AWS storage service should the team select to meet these requirements?

  1. A
    Amazon Elastic Block Store (Amazon EBS) gp3 volume
  2. Amazon Elastic File System (Amazon EFS)Answer
  3. C
    Amazon Elastic Block Store (Amazon EBS) io2 volume with Multi-Attach
  4. D
    Amazon S3 Glacier Flexible Retrieval

Answer

Amazon Elastic File System (Amazon EFS)
Amazon Elastic File System (Amazon EFS) is a managed file storage service that provides shared, concurrent access for multiple EC2 instances. It supports the NFSv4 protocol, allowing all three instances to read and write to the file system simultaneously with low latency.

Step-by-Step Solution

1
Analyze the application requirements.
The application is deployed on 33 separate EC2 instances and requires a shared file storage solution where all instances can read and write files concurrently with low latency.
Understanding the requirement for concurrent shared file access narrows the choices to shared file storage solutions.
2
Evaluate the capabilities of Amazon EBS.
Standard EBS gp3 volumes cannot be shared. EBS io2 volumes with Multi-Attach provide block-level sharing but require specialized cluster file systems to prevent corruption, making them operationally complex and unsuitable for standard shared file access.
This rules out EBS block storage solutions for this standard shared file use case.
3
Evaluate Amazon S3 Glacier.
Amazon S3 Glacier is for cold archival storage with high retrieval latency, which does not support low-latency filesystem mounting.
This rules out S3 Glacier.
4
Identify the service that natively supports low-latency shared file access.
Amazon EFS is a managed file system that supports NFSv4, allowing multiple EC2 instances to mount and write to it simultaneously with low latency.
This matches all application requirements.

Key Concept

Shared file storage in AWS
Estimated Time:1m 0s
Rate this question

Topics

High-Performing and Scalable Storage Solutions

More questions from this topic