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Difficulty: MediumAWS Storage Services

A company is developing a microservices-based web application deployed across multiple Amazon EC2 instances in different Availability Zones. The architecture requires a shared, concurrent file system for services to read and write application assets, as well as a durable, highly scalable object storage location to store and archive user-uploaded PDF reports. Which two AWS storage services should the company select to meet these requirements? (Select TWO.)

  1. Amazon Elastic File System (Amazon EFS)Answer
  2. Amazon Simple Storage Service (Amazon S3)Answer
  3. C
    Amazon Elastic Block Store (Amazon EBS)
  4. D
    Amazon EC2 Instance Store
  5. E
    AWS Storage Gateway

Answer

Amazon Elastic File System (Amazon EFS) and Amazon Simple Storage Service (Amazon S3)
Amazon Elastic File System (Amazon EFS) is a shared file system that allows concurrent read/write access from multiple EC2 instances across different Availability Zones. Amazon Simple Storage Service (Amazon S3) is an object storage service designed for highly durable, scalable, and cost-effective storage of files like PDFs.

Step-by-Step Solution

1
Analyze the requirement for a shared, concurrent file system across multiple EC2 instances in different Availability Zones.
Identify Amazon Elastic File System (Amazon EFS) as the correct choice since it supports concurrent access from multiple instances across different Availability Zones.
EFS is a shared file storage service, unlike block storage options which are generally tied to a single instance or AZ.
2
Analyze the requirement for a durable, highly scalable storage location for user-uploaded PDF reports.
Identify Amazon Simple Storage Service (Amazon S3) as the correct choice because it is designed for storing flat files (objects) with high durability and scalability.
S3 is the standard AWS service for object storage workloads such as PDFs, images, and backups.

Key Concept

AWS Storage Services classification (File vs. Object vs. Block storage)
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Topics

AWS Storage Services

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