Elastic File System Quiz
An administrator runs a highly available application in AWS. A file storage layer is needed that can share between instances and scale the platform more easily.
Which AWS service can perform this action?
A. Amazon EBS
B. Amazon EFS
C. Amazon S3
D. Amazon EC2 Instance store
B. Amazon EFS
AWS Documentation mentions the following:
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. The EFS file system can be used as a common data source for workloads and applications running on multiple instances.
For more information on AWS EFS, please visit the following URL:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEFS.html
Option C is incorrect. S3 object based storage.
Option A is incorrect. EBS is block based storage.
Option D is incorrect. Instance stores are ephemeral.
EFS is the file storage which is scalar and elastic and can be used as a common storage for many instances.