on 802.16 standards for high-speed fixed wireless service using the 2GHz to 11GHz frequency bands. Newer versions are used for mobile wireless service. WiMAX fixed wireless service is used for Internet access and for backhaul networks, which connect cellular towers to mobile central offices. WiMAX 2 A 4G mobile protocol developed by the IEEE. It is not as widely used as LTE, but was available earlier. wire speed The capability of switches to forward packets equal to the full speed of their ports. Ports are the interfaces to which cabling is connected. Wire speed is achieved with powerful switch processors, the computers that look up addresses and forward packets. wireless local loop www.TechnicalPDF.com Uses wireless media to bring telephone service to a customer's premises rather than copper or fiber cabling. WISP (Wireless Internet Service Provider) Provides Internet access using non-cellular wireless technology. WLAN (Wireless Local Area Network) Local Area Network (LAN) in which devices are connected to other devices or the LAN wirelessly rather than with cabling; 802.11-based Wi-Fi networks are WLANs. worms Viruses that are programmed to start infecting networks and other computers at a predetermined future time and date. These time-released viruses are also referred to as bots. www (World Wide Web) Connects users from one network to another when they "click" links. It was developed in 1989 to make information on the Internet more accessible. A browser is required to navigate and access the World Wide Web. XML (Extensible Markup Language) A software language that was developed to make it easy for disparate computers to exchange information. XML uses tags to identify fields of data. XML is like a data dictionary in that uniform tags are attached to elements SO that diverse programs can read the tags. For example, tags can be used to identify elements such as prices, model numbers, product identities, or quantities ordered. ZigBee Based on the IEEE 802.15.4 standard for wireless networks with devices that oper