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Difficulty: MediumAWS Storage Services

A digital marketing agency needs to configure storage on AWS for a new campaign portal. The portal requires:

1. A highly available, shared file system that multiple Amazon EC2 instances running Linux can access concurrently to read and write campaign assets.
2. A persistent block storage volume attached to a single EC2 database instance that requires sub-millisecond latency for transaction logs.

Which two AWS storage services should the agency choose to meet these requirements?

  1. Amazon Elastic File System (Amazon EFS) to support the concurrent shared file access for the Linux instances.Answer
  2. Amazon Elastic Block Store (Amazon EBS) to provide persistent, low-latency block storage for the database instance.Answer
  3. C
    Amazon S3 Glacier Flexible Retrieval to store the active transaction logs for low-latency database access.
  4. D
    Amazon EC2 Instance Store to provide persistent, long-term block storage for the campaign assets.
  5. E
    Amazon Simple Storage Service (Amazon S3) to serve as a shared network file system mounted directly to the Linux instances.

Answer

The correct services are Amazon Elastic File System (Amazon EFS) for the shared file system and Amazon Elastic Block Store (Amazon EBS) for the database block storage.
Amazon Elastic File System (Amazon EFS) is a shared file system that can be mounted concurrently by multiple EC2 instances, meeting the first requirement. Amazon Elastic Block Store (Amazon EBS) provides high-performance, persistent block storage volumes for a single EC2 instance, meeting the second requirement.

Step-by-Step Solution

1
Analyze the first requirement: a shared file system accessible concurrently by multiple Linux-based Amazon EC2 instances.
Identify Amazon Elastic File System (Amazon EFS) as the correct choice since it is a fully managed network file system (NFS) that allows concurrent access from multiple EC2 instances.
EFS is designed for shared, concurrent file storage for Linux workloads, unlike block storage options.
2
Analyze the second requirement: persistent block storage attached to a single database instance with sub-millisecond latency.
Identify Amazon Elastic Block Store (Amazon EBS) as the correct choice since it provides high-performance, low-latency block-level storage volumes for individual EC2 instances.
EBS is optimized for databases and transactional logs that require dedicated, fast block storage.

Key Concept

Selecting appropriate AWS storage services based on file, block, object, and archival characteristics.
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Topics

AWS Storage Services

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