Which of the following is an example of a relational DBMS?
2025
Which of the following is an example of a relational DBMS?
Answer: A. MySQL — ConceptA relational database management system stores structured data in related tables and uses a relational query language to retrieve and combine rows.…
- A.
MySQL
- B.
MongoDB
- C.
Cassandra
- D.
Hadoop
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Correct answer: A
Concept
A relational database management system stores structured data in related tables and uses a relational query language to retrieve and combine rows. Keys, constraints, and joins express relationships while preserving data integrity.
Application
MySQL implements this table-and-relation model: it provides SQL queries, primary and foreign keys, constraints, and joins. These features make MySQL the relational DBMS among the listed technologies.
Contrast
MongoDB stores BSON-like documents in collections and is designed around a document data model.
Cassandra is a distributed wide-column database optimized for partitioned, highly available workloads.
Hadoop is an ecosystem for distributed storage and processing, with components such as HDFS and MapReduce; it is not itself a DBMS.
Result
Therefore, the relational DBMS in the given set is MySQL.