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Elastic File System Quiz

12,307

A legacy application needs a proprietary file system. Which of the following can be used to store data accessible by an EC2 instance?

A. AWS CloudFront

B. AWS S3

C. AWS Glacier

D. AWS EFS

D. AWS EFS
The AWS Documentation mentions the following:

Amazon Elastic File System (Amazon EFS) provides simple, scalable file storage for use with Amazon EC2 instances in the AWS Cloud. Amazon EFS is easy to use and offers a simple interface that allows you to create and configure file systems quickly and easily. With Amazon EFS, storage capacity is elastic, growing and shrinking automatically as you add and remove files, so your applications have the storage they need, when they need it.

When mounted on Amazon EC2 instances, an Amazon EFS file system provides a standard file system interface and file system access semantics, allowing you to seamlessly integrate Amazon EFS with your existing applications and tools. Multiple Amazon EC2 instances can access an Amazon EFS file system at the same time, allowing Amazon EFS to provide a common data source for workloads and applications running on more than one Amazon EC2 instance.

For more information on AWS EFS, please visit the following URL:

https://aws.amazon.com/efs/

Amazon EFS provides scalable file storage for use with Amazon EC2. You can create an EFS file system and configure your instances to mount the file system. You can use an EFS file system as a common data source for workloads and applications running on multiple instances.

With Amazon EFS, storage capacity is elastic, growing and shrinking automatically as you add and remove files, so your applications have the storage they need, when they need it.

Files and directories in an Amazon EFS file system support standard Unix-style read/write/execute permissions based on the user ID and group ID asserted by the mounting NFSv4.1 client. When a user attempts to access files and directories, Amazon EFS checks their user ID and group IDs to verify the user has permission to access the objects. Amazon EFS also uses these IDs as the owner and group owner for new files and directories the user creates.

Amazon EFS is not supported on Windows instances.

More information is available at:

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEFS.html
https://docs.aws.amazon.com/efs/latest/ug/accessing-fs-nfs-permissions.html
Option A is a web service that speeds up distribution of your static and dynamic web content
Option B is Object based Storage.
Option C is Object based and is mainly used for archiving purpose.

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