Simultaneous transmission of data to a number of stations
Transmission of signals without modulation
A signal all of whose energy is contained within a finite frequency range
All of these
used to monitor computers
that handles error and control messages
for transferring files from one machine to another
used to dynamically bind a high level IP address to a low-level physical hardware address
Very high frequency : 30MHz to 300 MHz
High frequency : 3 MHz to 30 MHz
Low frequency : 30kHz to 300 kHz
Very low frequency : 3kHz to 30 kHz
ATM
Satellite
Frame delay
Password administrators
Network administrators
The government
IT managers
LAN
WAN
MAN
DAN
Dirty packet buffer
Packet block
Packet receive buffer
Packet cache buffer
8
16
64
256
Digital transmission
Infrared transmission
Digitizing
Multiplexing
Slower data transmission
Higher error rate
Interference of transmissions from different computers
All of the above
