Question

multiple answer 4 points
8
which of the following are non - relational database types?
mysql
document
mariadb
key - value
previous

Explanation:

To determine non - relational database types, we analyze each option:

1. MySQL: It is a well - known relational database management system (RDBMS) that uses tables with a fixed schema and follows the relational model (using SQL for operations). So it is not a non - relational database.
2. Document: Document - oriented databases (like MongoDB) are non - relational. They store data as documents (usually in JSON - like format) and do not follow the tabular structure of relational databases.
3. MariaDB: It is a fork of MySQL and also follows the relational database model, using SQL and table - based storage. So it is not non - relational.
4. Key - value: Key - value databases (like Redis) are non - relational. They store data as a collection of key - value pairs, without the complex relationships and schema constraints of relational databases.

Answer:

B. Document, D. Key - value