what does a ccna do?
<answer> The Cisco Certified Network Associate program began in 1998 with one core certification focused on network routing and switching, obtainable by passing a single 75-minute written exam. <context> Updated August 25, 2017. Cisco Certified Network Associate (CCNA) is a popular industry certification program in computer networking developed by Cisco Systems. Cisco created the CCNA to recognize basic competency in installation and support of medium-sized networks. Types of CCNA Associate Certifications. The CCNA program began in 1998 with one core certification focused on network routing and switching, obtainable by passing a single 75-minute written exam.