Elastic Block Store is a service that provides a persistent block storage volume for use with EC2 instances in aws cloud. EBS volume is automatically replicated within its availability zone to prevent from the component failure. It offers high durability, availability, and low-latency performance required to run your workloads.

For an AWS interview question about EBS volumes, here’s a concise and informative answer:

“Elastic Block Store (EBS) volumes are persistent block-level storage devices that can be attached to Amazon EC2 instances in the AWS cloud. They provide durable storage that persists independently from the life of an EC2 instance. EBS volumes are highly available and reliable, offering features like snapshotting for backup and cloning, as well as various volume types optimized for different performance characteristics, such as throughput and IOPS (Input/Output Operations Per Second). EBS volumes are a fundamental building block for storing data in AWS infrastructure, facilitating data persistence and enabling scalable and resilient storage solutions for EC2 instances.”