What is the main responsibility of a network administrator?

The primary responsibility of a network administrator is to maintain and configure the computer network. This role involves a range of critical tasks such as ensuring network security, optimizing performance, managing network infrastructure, and troubleshooting connectivity issues. Network administrators are tasked with setting up network hardware, implementing necessary software, and monitoring data traffic to ensure seamless communication across the organization.

While registering domain names, providing customer support, or overseeing software purchases may be important functions within an organization, they typically fall outside the core responsibilities associated with network administration. The focus of a network administrator is predominantly on the overall health and configuration of the network, which enables all other functions within an organization to operate effectively.