Your company has just hit a bottleneck for its on-premises storage and now wants to extend its storage to AWS. They want to store the files in S3 and make them available as NFS file shares to their on-premises servers. Which of the following can help achieve this requirement?

Answer options:

A.Usage of S3 lifecycle policies
B.Usage of the EFS file system
C.Usage of the File gateway
D.Usage of AWS EBS volumes

Correct Answer: C
The AWS Documentation mentions the following.
File Gateway – A file gateway supports a file interface into Amazon Simple Storage Service (Amazon S3) and combines a service and a virtual software appliance. Using this combination, you can store and retrieve objects in Amazon S3 using industry-standard file protocols such as Network File System (NFS) and Server Message Block (SMB). The software appliance, or gateway, is deployed into your on-premises environment as a virtual machine (VM) running on VMware ESXi or Microsoft Hyper-V hypervisor. The gateway provides access to objects in S3 as files or file share mount points.
Option A is incorrect because this is used to transit objects from S3 Standard storage to other storage options.
Option B is incorrect because this is used while this can be used as a file system. You would still use the File Storage gateway to expose your S3 objects as files.
Option D is incorrect because this is used for storage on EC2 Instances.
For more information on what is the Storage gateway, please refer to the below URL-
https://docs.aws.amazon.com/storagegateway/latest/userguide/WhatIsStorageGateway.html