A Computer Networking Instructor teaches students about network design, configuration, maintenance, and security. They develop lesson plans, conduct lectures, and provide hands-on training on networking technologies such as TCP/IP, routers, switches, and firewalls. Instructors may work at universities, technical schools, or corporate training centers to prepare students for certifications like CCNA, CompTIA Network+, and other industry credentials. They also stay updated with the latest networking trends and advancements to ensure relevant curriculum content.