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Sending data from one device to many devices on a network
N
NAT
Network Address Translation allows many private IP addresses to connect to the Internet, or
another network, through one IP address
NetBEUI
NetBIOS Extended User Interface is a Local Area Network communication protocol. This is an
updated version of NetBIOS
NetBIOS
Network Basic Input/Output System
Netmask
Determines what portion of an IP address designates the Network and which part designates
the Host
Network Interface Card
A card installed in a computer or built onto the motherboard that allows the computer to connect
to a network
Network Layer
The third layer of the OSI model which handles the routing of traffic on a network
Network Time Protocol
Used to synchronize the time of all the computers in a network
NIC
Network Interface Card
NTP
Network Time Protocol
O
OFDM
Orthogonal Frequency-Division Multiplexing is the modulation technique for both 802.11a and
802.wireless g
OSI
Open Systems Interconnection is the reference model for how data should travel between two
devices on a network
OSPF
Open Shortest Path First is a routing protocol that is used more than RIP in larger scale
networks because only changes to the routing table are sent to all the other APs in the network
as opposed to sending the entire routing table at a regular interval, which is how RIP functions
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
Ping
A utility program that verifies that a given Internet address exists and can receive messages.
The utility sends a control packet to the given address and waits for a response.
PoE
Power over Ethernet is the means of transmitting electricity over the unused pairs in a category
5 Ethernet cable
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