A high-scale 311 mobile app needs a key-value session store that can handle spiky request patterns without managing database servers. Which AWS database fits?
Select an answer to reveal the explanation.
Short Explanation
Think lockers with labels: key-value stores grab a session by its key fast, without spinning up database servers. DynamoDB is AWS's managed NoSQL for that pattern. Redshift is a warehouse for analytics, ACM manages certificates, and EFS is shared file storage—not a session key-value API.
Full Explanation
Amazon DynamoDB is a fully managed NoSQL database that supports key-value and document data models and is commonly used for high-scale session and similar access patterns. Amazon Redshift is a data warehouse, AWS Certificate Manager issues and manages TLS certificates, and Amazon EFS provides shared file storage—none are the managed NoSQL key-value session store in this scenario.