A company is planning to move data backups to the AWS Cloud. The company needs to replace on-premises storage with storage that is cloud-based but locally cached.
A. AWS Storage Gateway
AWS Storage Gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration between an organization's on-premises IT environment and AWS's storage infrastructure. It allows the company to store data backups in the cloud while caching a copy locally for low-latency access.
There are different options of Storage Gateway, but two types that could be used for this use case are:
File Gateway (NFS) - allows to store and retrieve files as objects in Amazon S3 and access them through a file interface.
Volume Gateway (iSCSI) - allows to create storage volumes and mount them as iSCSI devices from on-premises application and access them as locally attached disks.
Both options provide a cloud-based storage that is locally cached, which meets the company's requirement.
The correct Answer is D.Amazon EFS is a cloud file storage service that replaces local storage with cloud-based but locally cached storage. It provides highly scalable shared file storage that can be accessed by multiple EC2 instances simultaneously. Using Amazon EFS, you can cache data locally and back it up to the AWS cloud.
I think It's A
AWS Storage Gateway Documentation
AWS Storage Gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration between your on-premises IT environment and the AWS storage infrastructure in the AWS Cloud.
https://docs.aws.amazon.com/storagegateway/index.html
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