AWS Solutions Architect Associate Practice Test

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Which of the following AWS services provides a fully managed NoSQL database option?

Amazon RDS
Amazon DynamoDB
Amazon S3
Amazon Redshift

The correct answer is: Amazon DynamoDB

Amazon DynamoDB is the correct choice as it is specifically designed as a fully managed NoSQL database service. It allows developers to create applications that require consistent, single-digit millisecond latency at any scale, without the complexity of managing database hardware or software. DynamoDB automatically scales up and down to adjust for capacity and maintain performance, which alleviates the operational overhead often associated with traditional database systems. In contrast, Amazon RDS is primarily focused on relational databases and requires management of DB instances. Amazon S3 is an object storage service and not a database service, and while it can be used for storing unstructured data, it does not provide the query capabilities typical of databases. Amazon Redshift is a data warehouse service that is suited for large-scale data analysis and is not a NoSQL solution, but rather a columnar database designed for complex queries and analytics on structured data. Therefore, DynamoDB stands out as the fully managed NoSQL database solution that offers scalability, reliability, and ease of management, making it uniquely suitable for applications that require a NoSQL model.