Which of the following is a non-relational database used

Solution

Cassandra is a highly scalable, non-relational (NoSQL) database that is used to handle large volumes of data across distributed systems. It is designed to work with large-scale, diverse datasets, making it ideal for Big Data environments where traditional relational databases like MySQL or Oracle may struggle. Why Other Options are Wrong:

• a, b, d, e) MySQL, Oracle, SQL Server, and IBM Db2 are relational databases, optimized for structured data, but are not suited for unstructured or semi-structured Big Data at scale.