CCNA is Cisco Certified Network Associate. It is an entry or "apprentice" level networking certification. Cisco created the CCNA to know basic ability in computer networking, particularly for installation and support of LAN/WAN networks having 100 nodes or fewer. The CCNA covers both IP and non-IP networks, including Novell IPX and AppleTalk. Obtaining the CCNA requires passing a single certification exam. Although the CCNA has no formal fundamentals, one must effectively complete hundreds of hours of study in preparation. Primarily, one must understand basic routing and switching as they relate to network design, performance and security. Additional background information on the CCNA with links to study notes and practice exams may be obtained.