What does a database management system (DBMS) do?

A database management system (DBMS) primarily focuses on creating, managing, and querying databases. This involves several key functions: it allows users to create databases to store data, manage the data through features such as backup, recovery, and data integrity, and provides query capabilities through structured query language (SQL) or other means, enabling users to retrieve and manipulate the data stored in the databases effectively.

By managing the complexities of data storage, retrieval, and organization, a DBMS acts as an intermediary between the database and end-users or applications, ensuring that data is stored efficiently and can be accessed in a structured manner. It is fundamentally designed to handle the essential operations related to database management, making it a critical component in information systems.

The other options refer to different functions associated with computing and networking, such as internet connectivity, hardware management, and cybersecurity, which are outside the scope and primary purpose of a DBMS. This highlights the specialized role that a DBMS plays in the context of data-related tasks.