Storage
RecognitionAmazon EBS
Block storage for EC2-based processing whose lifecycle and performance are managed with the compute environment.
Key points
- EBS supplies persistent block volumes and snapshots for EC2-based processing hosts.
- Volume performance, attachment, backup, encryption, and lifecycle remain coupled to the compute design.
Best-known use cases
- Attach persistent block storage to EC2-based processing nodes.
- Snapshot volumes that contain self-managed data or pipeline state.
What candidates often confuse it with
- EBS is host-attached block storage; EFS is shared file storage and S3 is object storage.
Key takeaway
Choose EBS when an EC2-based data workload requires persistent block devices or volume snapshots.
Relevant exam tasks
- D1.2 — Task 1.2: Transform and process data
- 1.2.1 — Optimize container usage for performance needs (for example, Amazon EKS, Amazon ECS).
- D4.1 — Task 4.1: Apply authentication mechanisms
- 4.1.6 — Describe the differences between managed services and unmanaged services.