AWS Certified Solutions Architect Associate SAA-C03 Practice Question
Your client is seeking a storage solution that allows for simultaneous file access from multiple compute instances. The need is for a managed service that supports NFS protocols. Which option should you recommend?
Amazon Elastic File System (EFS) is optimized for use cases where a shared file system is required. It supports NFS protocol, and multiple compute instances can simultaneously access the same file system, making it the correct choice for the described scenario. Alternative solutions like Amazon S3 and Amazon EBS do not offer file-level storage with concurrent access. S3 offers object storage with eventual consistency, which is not suitable for file systems requiring consistent and concurrent access, while EBS is a block-level storage that's only attachable to one instance at a time, ruling out simultaneous access.
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What are NFS protocols?
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What are the main differences between Amazon EFS and Amazon S3?
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Can you explain why Amazon EBS is not suitable for this scenario?