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Switch
A device that connects computing devices. A LAN switch allows the grouping of network
devices to limit network traffic.
TCP (Transmission
Control Protocol)
A network protocol for transmitting data that requires acknowledgment from the recipient of
data sent.
TCP/IP (Transmission
Control Protocol/Internet
Protocol)
A set of instructions a computer uses to communicate over a network.
UDP (User Datagram
Protocol)
A network protocol for transmitting data that does not require acknowledgment from the
recipient of the data that is sent.
VPN (Virtual Private
Network)
A security measure to protect data as it leaves one network and goes to another over the
Internet.
WAN (Wide Area Network)
A network that provides communication services between devices in a geographic area
larger than that served by a local area network or a metropolitan area network. A WAN may
use or provide public communication facilities.
WINS - (Windows Internet
Naming Service)
A system that determines the IP address associated with a particular network computer
(name resolution). WINS supports network client and server computers running Windows
operating system and can provide name resolution for other computers with special
arrangements. Determining the IP address for a computer is a complex process when
DHCP servers assign IP addresses dynamically. For example, it is possible for DHCP to
assign a different IP address to a client each time the machine logs on to the network. INS
uses a distributed database that is automatically updated with the names of computers
currently available and the IP address assigned to each one. DNS is an alternative system
for name resolution suitable for network computers with fixed IP addresses.
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