An enterprise is modernizing a legacy application that relies on a massive, monolithic relational database. They want to break the database apart into purpose-built databases. The application requires a highly connected social graph to recommend friends, and a high-throughput key-value store for session management. Which combination of AWS databases should they migrate to? (Select TWO)

Answer options:

Amazon Neptune for the social graph.

Amazon Redshift for the social graph.

Amazon DynamoDB for session management.

Amazon RDS for session management.

Amazon QLDB for the social graph.

Amazon DocumentDB for session management.

How to approach this question

Match the workload to the purpose-built database: Graph -> Neptune, Key-Value -> DynamoDB.

Full Answer

Amazon Neptune for the social graph. Amazon DynamoDB for session management.

Modernization often involves moving from a monolithic database to purpose-built databases. Amazon Neptune is specifically designed for graph workloads (social networks, recommendation engines). Amazon DynamoDB is a highly scalable key-value store ideal for session management.

Common mistakes

Trying to use a relational database (RDS) for everything.

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