delivery isn't necessary (for example, real-time video and audio where packets can be dumped as there
is no time for retransmitting the data).
Virtual Servers
Virtual servers are client servers (such as Web servers) that share resources with other virtual servers
(i.e., it is not a dedicated server).
WEP
WEP (Wired Equivalent Privacy) is the de facto security protocol for wireless LANs, providing the
"equivalent" security available in hardwired networks.
Wireless LAN
Wireless LANs (WLANs) are local area networks that use wireless communications for transmitting data.
Transmissions are usually in the 2.4 GHz band. WLAN devices do not need to be lined up for
communications like infrared devices. WLAN devices use access points which are connected to the wired
LAN and provide connectivity to the LAN. The radio frequency of WLAN devices is strong enough to be
transmitted through non-metal walls and objects, and can cover an area up to a thousand feet. Laptops
and notebooks use wireless LAN PCMCIA cards while PCs use plug-in cards to access the WLAN.
WLAN
WLANs (Wireless LANs) are local area networks that use wireless communications for transmitting data.
Transmissions are usually in the 2.4 GHz band. WLAN devices do not need to be lined up for
communications like infrared devices. WLAN devices use access points which are connected to the wired
LAN and provide connectivity to the LAN. The radio frequency of WLAN devices is strong enough to be
transmitted through non-metal walls and objects, and can cover an area up to a thousand feet. Laptops
and notebooks use wireless LAN PCMCIA cards while PCs use plug-in cards to access the WLAN.
WAN
WAN (Wide Area Network) is a communications network that covers a wide geographic area such as a
country (contrasted with a LAN, which covers a small area such as a company building).
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