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station and network addresses, enabling TCP/IP messages to be sent to multiple networks within the
LAN or in the WAN.
TELNET
Telnet is a terminal emulation protocol commonly used on the Internet and TCP- or IP-based networks.
Telnet is used for connecting to remote devices and running programs. Telnet is an integral component of
the TCP/IP communications protocol.
UDP
(User Datagram Protocol) is a protocol within TCP/IP that is used to transport information when accurate
delivery isn't necessary (for example, realtime 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).
