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PPPoE (Point-to-Point Protocol over
Ethernet):
A specification for connecting
users on an Ethernet line to the Internet
through a common broadband medium.
Protocol:
A standard way of exchanging
information between computers.
RADIUS (Remote Authentication Dial
In User Service):
A server that issues
authentication keys to clients.
RAM (Random Access Memory):
Non-
permanent memory.
Repeater Hub:
A device that collects,
strengthens and transmits information to
all connected devices, allowing the network
to be extended to accommodate additional
workstations.
See also
Bridge
.
RC4:
The encryption algorithm used by
WEP.
RJ-45 connector:
An 8-pin connector
used between a twisted pair cable and a
data transmission device.
ROM (Read Only Memory):
Memory
hardware that allows fast access to
permanently stored data but prevents
addition to or modification of the data.
Router:
A device in a network that
handles message transfer between
computers.
Similar to a
hub
, but with
added functionality and efficiency.
Roaming:
The ability to use a wireless
device while moving from one access point
to another without losing the connection.
Server:
Any computer that makes files or
peripheral devices available to users of the
network and has a resident Network OS.
SMTP (Simple Mail Transfer Protocol):
The protocol used to define and deliver
electronic mail (E-mail) from one location
to another.
Glossary