AWS Solutions Architect Associate Practice Test

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What type of storage are Amazon's EBS volumes?

Object based storage
Block based storage
Encrypted by default
Not suitable for databases

The correct answer is: Block based storage

Amazon EBS (Elastic Block Store) volumes are classified as block-based storage. This type of storage allows for efficient data access and manipulation, as EBS volumes are designed to function like traditional hard drives that can be attached to your EC2 instances. Block storage enables users to format the volumes with a file system or to use them in a database, providing low-latency performance and the ability to handle random read and write operations. In contrast, object-based storage refers to a model where data is stored as discrete units (objects) in a flat address space, typically used in services like Amazon S3. EBS volumes do not operate on this model, as they are specifically designed for block-level data storage, which is more appropriate for workloads requiring frequent reads and writes, such as databases and applications. The features regarding encryption and suitability for databases are additional considerations but do not define the fundamental nature of EBS as block storage. EBS volumes can indeed be encrypted and are suitable for databases, further enhancing their use case in various applications.