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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 USER
N
AME 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-
p
air. UTP is a form of cable used
b
y all access methods. It consists of several pairs of
wires enclosed in an unshielded sheath.
W
WAN
Wide-Area Network. A wide-area network consists of
groups of interconnected computers that are separated
b
y a wide distance and communicate with each other
via common carrier telecommunication techniques.