A CCNA Instructor is responsible for teaching networking concepts and Cisco technologies to students or professionals preparing for the Cisco Certified Network Associate (CCNA) certification. They develop lesson plans, conduct lectures, and provide hands-on training on topics like routing, switching, security, and troubleshooting. CCNA Instructors may work in educational institutions, corporate training centers, or as independent trainers. Strong networking knowledge, teaching skills, and a CCNA or higher Cisco certification are typically required for this role.