ACloud Guru Certified Cloud Practitioner Practice Exam

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What database option is best suited for storing key-value pairs for a gaming application?

Amazon RedShift
DynamoDB
RDS MySQL
AWS S3

The correct answer is: DynamoDB

DynamoDB is the most appropriate choice for storing key-value pairs in a gaming application due to its design as a NoSQL database that offers high performance, scalability, and flexibility. This capability is essential in gaming environments where rapid data retrieval and storage of a high volume of transactions are necessary, such as player scores, game states, and user profiles. DynamoDB is a fully managed service that automatically scales to accommodate high traffic, which is common in gaming applications when multiple users interact with the system simultaneously. Additionally, it provides features like low-latency responses and the ability to handle large amounts of unstructured data, making it ideal for the variable data types commonly found in games. Using a relational database like RDS MySQL would introduce complexity due to the need for predefined schemas and relationships, which is not required when storing simple key-value pairs. Amazon RedShift is designed for data warehousing and analytics rather than transactional workloads typical in gaming applications. AWS S3 is primarily an object storage service and is not optimized for real-time data access, which is crucial for gaming scenarios. In summary, DynamoDB's NoSQL structure, performance capabilities, and suitability for key-value storage make it the best option for a gaming application storing key-value pairs.