Purpose-Built Database Selection Quiz

What you'll be asked

1. Which type of database is best suited for storing simple key-value pairs where high-speed retrieval is the primary performance objective?
2. You are building a social media application that requires deep analysis of relationships between users and their interests. Which database model provides the best performance for these recursive queries?
3. Your team needs a database to store a massive volume of sensor data points collected every millisecond. Which database type is most appropriate for this performance requirement?
4. When selecting a database for an e-commerce catalog that requires flexible schema updates and nested data structures, why would you choose a Document database over a Relational database?
5. A global banking application requires strong consistency and complex transactional integrity across multiple operations. Despite the potential for lower horizontal scaling, why is a Relational Database (RDBMS) still the standard choice here?

Answers and explanations come after you submit.