AWS Solutions Architect Associate Practice Test

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In AWS, which service provides a fully managed database service for various database engines?

Amazon S3
Amazon RDS
Amazon DynamoDB
Amazon EC2

The correct answer is: Amazon RDS

Amazon RDS, or Amazon Relational Database Service, is the service that provides a fully managed database solution for various database engines. It simplifies the process of setting up, operating, and scaling a relational database in the cloud. With Amazon RDS, users can choose from multiple database engines such as MySQL, PostgreSQL, MariaDB, Oracle, and Microsoft SQL Server, allowing them to use the database that best fits their needs. The fully managed aspect means that AWS handles routine database tasks such as provisioning, patching, backup, recovery, and scaling. This significantly reduces the operational burden on users and enables them to focus on application development rather than database maintenance. In contrast, other options involve different functionalities. Amazon S3 is primarily an object storage service, not a database service. Amazon DynamoDB is a fully managed NoSQL database service, which is specialized for scalability and performance but does not cover relational database needs as RDS does. Amazon EC2 is a compute service that allows users to run virtual servers in the cloud but is not a database service either. These services serve distinct purposes, demonstrating why Amazon RDS is the correct choice for a fully managed database service across various database engines.