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Appendix
62 D-Link Systems, Inc.
P
Password - A sequence of characters that is used to authenticate requests to resources on a network
Personal Area Network – The interconnection of networking devices within a range of 10 meters
Physical layer – The first layer of the OSI model. Provides the hardware means of transmitting electrical
signals on a data carrier
PoE – Power over Ethernet is the means of transmitting electricity over the unused pairs in a category 5
Ethernet cable
POP 3 – Post Office Protocol 3 is used for receiving email
PPP – Point-to-Point Protocol is used for two computers to communicate with each over a serial interface, like
a phone line
PPPoE – Point-to-Point Protocol over Ethernet is used to connect multiple computers to a remote server over
Ethernet
PPTP – Point-to-Point Tunneling Protocol is used for creating VPN tunnels over the Internet between two
networks
Preamble – Used to synchronize communication timing between devices on a network
Q
QoS – Quality of Service
R
RADIUS – Remote Authentication Dial-In User Service allows for remote users to dial into a central server and
be authenticated in order to access resources on a network
Rendezvous – Apple’s version of UPnP, which allows for devices on a network to discover each other and be
connected without the need to configure any settings
Repeater – Retransmits the signal of an Access Point in order to extend it’s coverage
RIP – Routing Information Protocol is used to synchronize the routing table of all the routers on a network
RJ-11 – The most commonly used connection method for telephones
RJ-45 - The most commonly used connection method for Ethernet
RS-232C – The interface for serial communication between computers and other related devices
RSA – Algorithm used for encryption and authentication