A network administrator is a professional responsible for managing and maintaining a computer network within an organization. Their duties include monitoring network performance, troubleshooting issues, and ensuring security protocols are in place. They work with various hardware and software components, such as routers, switches, and firewalls, to keep the network running smoothly. In addition to technical skills, network administrators often collaborate with other IT staff and users to address network-related concerns. They may also be involved in planning network upgrades and implementing new technologies to improve efficiency. Overall, their role is crucial for maintaining reliable communication and data exchange within an organization.