Question

Difficulty: EasyAWS Storage Services

An IT administrator is designing a storage architecture for a corporate application on AWS. The application has two key requirements:

1. It needs a persistent block storage volume to serve as the boot drive for a single Amazon EC2 instance.
2. It needs a shared file system that can be accessed and updated simultaneously by multiple EC2 instances using the Network File System (NFS) protocol.

Which two AWS storage services should the administrator select? (Select TWO.)

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

Answer

Amazon Elastic Block Store (Amazon EBS) and Amazon Elastic File System (Amazon EFS)
Amazon Elastic Block Store (Amazon EBS) provides persistent, low-latency block storage volumes that are designed to be attached to a single EC2 instance, making it the ideal choice for an instance boot volume. Amazon Elastic File System (Amazon EFS) provides a fully managed shared file system that supports the Network File System (NFS) protocol, allowing hundreds of EC2 instances to mount and access the storage concurrently.

Step-by-Step Solution

1
Identify the storage requirement for the EC2 boot drive.
Amazon Elastic Block Store (Amazon EBS) is selected.
EC2 instances require a persistent block storage service (Amazon EBS) to serve as a durable boot drive that retains data when the instance is stopped.
2
Identify the storage requirement for the shared, multi-instance file system using the NFS protocol.
Amazon Elastic File System (Amazon EFS) is selected.
Amazon EFS is designed as a managed shared file system that supports the NFS protocol, allowing multiple EC2 instances to read and write to the same storage concurrently.

Key Concept

AWS storage services differ by their architecture (block vs. file vs. object) and access patterns (single instance vs. multi-instance concurrent access).
Estimated Time:1m 0s
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