What does a Network Administrator do?

A Network Administrator is primarily responsible for managing and maintaining an organization's networking systems, which involves overseeing the performance, security, and connectivity of computer networks. This role includes tasks such as configuring network hardware (like routers and switches), monitoring network traffic, troubleshooting issues, implementing security protocols, and ensuring that all users have appropriate access to network resources.

Unlike the roles suggested by other choices, a Network Administrator does not engage in coding video games, designing websites, or creating mobile applications. While these tasks are vital in the tech industry, they fall under different specializations such as game development, web development, and mobile application development, respectively. Therefore, the role of a Network Administrator is distinctly focused on the infrastructure that supports these applications and services.