The Cisco Wireless Control System (WCS) is an optional network component that works in conjunction with lightweight access points (APs), controllers, and the Cisco Wireless Location Appliance. With Cisco WCS, network administrators have a... Learn More>>
Extensible Authentication Protocol (EAP) and Wi-Fi Protected Access (WPA) authentication and encryption mechanisms are vast improvements over early implementations of wireless security. Given the variety of ways EAP and WPA can be used in a wireless... Learn More>>
The Cisco Wireless Control System (WCS) is a tool that helps to centralize, and therefore simplify, the administration of wireless networks. The WCS can manage multiple access points and controllers as well as offer enhanced monitoring and security. Learn More>>
While the 802.11x standard is most prevalent in today's wireless environments, it is also important to have a working knowledge of non-802.11 wireless technologies and their impact on WLANs. Understanding the principles behind wireless... Learn More>>
Early security for wireless communication was weak, as the IEEE 802.11 standard was designed for ease of deployment in residential homes instead of in enterprise environments. With the widespread adoption of wireless networks by businesses, better protection of... Learn More>>
The technology behind sending wireless signals includes antennae, which are needed to transmit RF signals, and spread spectrum technologies, which include the protocols involved in sending wireless frames. This course describes the... Learn More>>
In order to send information wirelessly, devices must make use of the radio frequency (RF) spectrum. Rules regarding what transmit power is allowed in specific frequencies differ between regions. In order to allow for... Learn More>>
The primary function of an access point is to provide entry onto a network to wireless clients. However, access points can also be expected to monitor channels to detect rogues or interference, locate devices, or help troubleshoot network issues. Learn More>>
Troubleshooting wireless networks presents a unique set of challenges. Unlike wired LAN users, wireless clients are mobile and their relative position within a building is often the most likely culprit in connectivity issues. Learn More>>
A number of configuration tools exist to aid in the setup and administration of wireless clients on common operating systems, for example NetworkManager under Linux, the Mac AirPort configuration utility, and Windows Wireless Zero Configuration (WZC). Learn More>>
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