Several Linux EC2 instances in a city analytics VPC must concurrently read and write the same shared file system using NFS-style access. Which AWS service best fits?
Select an answer to reveal the explanation.
Short Explanation
Many Linux boxes sharing one growing file tree? That is classic Amazon EFS territory—elastic NFS-style file storage. S3 is objects; EBS is usually one instance at a time. EFS is the shared file system those analytics EC2s can mount together.
Full Explanation
Amazon EFS provides elastic, shared file storage that Linux clients commonly mount with NFS semantics across many EC2 instances. It fits concurrent shared-directory workloads. S3 Glacier is archival object storage, DynamoDB is a NoSQL database, and Certificate Manager issues certificates—none provide a shared POSIX-style file system for Linux fleets.