AWS Certified Solutions Architect Associate SAA-C03 Practice Question
An organization requires persistent, low-latency storage for their database application running in cloud-based virtual machines. The storage must support granular updates and be recognized by the operating system as a local disk. Which cloud storage service would best meet these requirements?
Amazon Elastic Block Store (Amazon EBS) provides block-level storage volumes that attach to Amazon EC2 instances. These volumes behave like local disks to the operating system, offering low-latency performance suitable for database applications requiring granular updates and direct block-level access to storage. Amazon Elastic File System (Amazon EFS) is a scalable file storage service designed to be mounted by multiple instances concurrently, providing a shared file system. While EFS is suitable for workloads needing shared access to files, it is not optimized for the block-level access required by databases. Amazon Simple Storage Service (Amazon S3) is an object storage service which is ideal for storing and retrieving large amounts of data but does not provide block-level access or low latency required for database storage. AWS Storage Gateway is a hybrid cloud storage service that enables on-premises applications to use cloud storage but is not relevant for applications running entirely within the cloud.
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