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AWS Certified Solutions Architect - Professional · AWS
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
Why not the others: A (Storage Gateway file gateway to S3): Not ideal for this. It’s meant for hybrid/on-prem access patterns and doesn’t provide the same shared POSIX filesystem semantics/performance as native EFS for an EC2 analytics cluster. B (EFS General Purpose): GP is great for low-latency general workloads, but the question emphasizes high throughput across many nodes → Max I/O is the safer exam answer. C (EBS io2): EBS is block storage and generally can’t be attached read/write to many instances simultaneously (multi-attach is limited and not a shared filesystem solution).
For Big Data you must use Max I/O. So answer is D for sure.
D is right