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108
T
(TCP/IP)
Transmission Control Protocol/Internet Protocol is a widely used
transport protocol that connects diverse computers of various
transmission methods. It was developed y the Department of
Defense to connect different computer types and led to the
development of the Internet.
Transceiver
A transceiver joins two network segments together. Transceivers
can also be used to join a segment that uses one medium to a
segment that uses a different medium. On a 10BASE-5 network,
the transceiver connects the network adapter or other network
device to the medium. Transceivers also can be used on 10BASE-
2 or 10BASE-T networks to attach devices with AUI ports.
U
UDP
The User Datagram Protocol is a connectionless protocol that
resides above IP in the TCP/IP suite
ULP
The upper-layer protocol refers to Application Layer protocols
such as FTP,SNMP, and SMTP.
User Name
The USERNAME is the unique name assigned to each person
who has access to the LAN.
Utility
It is a program that performs a specific task.
UTP
Unshielded twisted-pair. UTP is a form of cable used by all access
methods. It consists of several pairs of wires enclosed in an
unshielded sheath.
109
W
WAN
Wide-Area Network. A wide-area network consists of groups of
interconnected computers that are separated by a wide distance
and communicate with each other via common carrier
telecommunication techniques.
Windows
Windows is a graphical user interface for workstations that use
DOS.
Workgroup
A workgroup is a group of users who are physically located
together and connected to the same LAN, or a group of users who
are scattered throughout an organization but are logically
connected by work and are connected to the same network group.
Workstations
Workstation refers to the intelligent computer on the user’s
desktop. This computer may be an Intel-
b
ased PC, a Macintosh, or
a UNIX-based workstation. The workstation is any intelligent
device a user works from.