5 Flashcards
Communication networks store…
data & information.
Network’s … things.
link
Control affects…
privacy & security.
What says Shannon’s Communication Model?
Sender sends data to transmitter
Transmitter sends signal to transmitter
Transmitter sends data to receiver
Name the three Network Types:
PAN (Personal Area Network)
LAN (Local Area Network)
WAN (Wide Area Network)
Describe how PAN works
It connects devices within 30 feet, wirelessly.
Serves a single individual
Describe how LAN works
It connects PC’s in a single building.
Describe how WAN works
It covers large areas, consists of smaller networks.
Communication channels can be…
wired or wireless.
Name pro’s and con’s of wired communication channels.
Pro’s: shielded, dependable, secure.
Con’s: costly, limited mobility, easy to damage.
In the case of wireless devices & transceivers, why devices have transceivers?
For sending & receiving data.
Microwaves in communication are…
directional, high-capacity signals.
Name pro’s and con’s of wireless communication channels.
Pro’s: mobility, no cables, less power spikes.
Con’s: speed, range, security, licensing.
Brandwith is…
transmission capacity.
A brand of at least 25Mbps is…
a broadbrand.