Question 31
Domain 3: Cloud Technology and ServicesWhich AWS service provides a simple and scalable shared file storage solution for use with Linux-based AWS and on-premises servers?
Correct answer: D
Explanation
Amazon EFS is AWS’s managed file storage service for Linux workloads. It provides a "simple and scalable" shared file system that can be mounted by multiple AWS and on-premises servers over NFS, making it suitable for shared access across environments.
Why each option is right or wrong
A. Amazon S3.
B. Amazon Glacier.
C. Amazon EBS.
D. Amazon EFS.
Amazon EFS is the AWS managed file system service for Linux workloads, and it is explicitly designed to be mounted over NFS by multiple instances at the same time. In AWS documentation, EFS supports shared access from EC2 and on-premises Linux servers via AWS Direct Connect or VPN, which matches the question’s requirement for a simple, scalable shared file storage solution across AWS and on-prem environments.