Which of the following is a NoSQL database?

Correct option is C

Cassandra is a distributed NoSQL database designed to handle large amounts of unstructured data across multiple servers. Unlike traditional relational databases like MySQL, it uses a flexible schema model and is ideal for applications requiring high availability and scalability.
Important Key Points:
1. NoSQL databases like Cassandra use a non-relational model, supporting document, key-value, graph, or wide-column formats.
2. Cassandra provides high write throughput and supports eventual consistency, making it suitable for big data applications.
3. Other examples of NoSQL databases include MongoDB, DynamoDB, and Couchbase.
Knowledge Booster:
· MariaDB: A relational database management system (RDBMS) derived from MySQL.
· MySQL: A popular open-source RDBMS widely used for web applications.
· Informix: A relational database with some NoSQL capabilities but primarily classified as an RDBMS.
· DB2: An enterprise-class RDBMS developed by IBM, also supporting SQL.