AWS Storage Gateway

Correct Answer: AWS Storage Gateway acts as a bridge between on-premises applications and cloud storage, enabling low-latency access to data.

AWS Storage Gateway is the correct answer because it acts as a bridge between on-premises applications and AWS Cloud storage services, such as Amazon S3, providing low-latency access to data. It enables on-premises applications to seamlessly connect to cloud storage. AWS DataSync is used for data migration and synchronization between on-premises storage and AWS storage services, but it does not provide low-latency access for applications. Amazon S3 Transfer Acceleration speeds up file transfers between clients and S3 buckets over long distances, but it does not connect on-premises applications to cloud storage. AWS Direct Connect establishes a dedicated network connection between on-premises infrastructure and AWS, but additional components, such as Storage Gateway, are needed to connect applications to storage services.

Correct Answer: File Gateway configured in cache mode, which stores frequently accessed data locally while persisting all data in Amazon S3

File Gateway configured in cache mode is the best answer because it allows on-premises applications to leverage object storage in Amazon S3 while maintaining frequently accessed data locally. This configuration stores frequently accessed data on-premises for low-latency access, while persisting all data in Amazon S3 for durability and scalability. Volume Gateway configured in stored volume mode stores all data locally and only backs up snapshots to S3, which does not allow leveraging S3 object storage directly. Tape Gateway is used for archiving data to S3 Glacier and does not maintain frequently accessed data locally. File Gateway in stored mode replicates file changes to S3 synchronously, but does not necessarily keep frequently accessed data local.

Correct Answer: File Gateway configured for S3 File interface

The File Gateway configured for S3 File interface is the correct answer. This Gateway type allows on-premises applications to store and retrieve objects using S3 APIs while providing low-latency access to frequently accessed data. The data is stored in S3 but cached locally for faster access. The other options are incorrect because: - Volume Gateway in stored volumes mode provides block storage volumes backed by EBS snapshots in S3, but does not allow direct S3 API access. - Tape Gateway provides a virtual tape library backed by S3 and Glacier, primarily for backup purposes, not for low-latency access to frequently used data. - File Gateway in NFS mode stores files in S3 but presents them as NFS shares, it does not provide S3 API access.