What it is: A managed file system that can be mounted by multiple instances at the same time (NFS).
What it’s for:
Key ideas:
Unlike EBS (attached to one instance), EFS can be shared by many.
Typically used inside a VPC with mount targets per AZ.
Exam cues:
Hard words:
*mount* /maʊnt/: gắn (file system vào máy)
*shared* /ʃerd/: dùng chung
*fleet* /fliːt/: một nhóm lớn (nhiều máy)