The CompTIA Network+ certification is a valuable credential in the IT marketplace. This card can help you pass the test, as well as provide a handy reference for general networking information. A basic overview summarizes access methods, transport protocols, network services, wireless LANs, and security and authentication protocols. Advanced topics cover network devices, network security, remote access protocols, and WAN technologies. The quick reference section will help you remember types of media, media connectors, and cables, as well as reference models, IP addressing, TCP/IP protocols and ports, networking technologies, and remote access connection technologies.