Bus Network
nLinked
by a twisted wire, coaxial cable, or fiber optic
nno
host computer control
nsubject
to traffic problems
nMost
common Ethernet
nOriginally
proposed in 1972 by Xerox
nLater
DEC and Intel joined in
nBecame
th…Read More
The PSTN – Digitization
Voice
frequency is 100 - 5000 Hz, with the main portion from 300 – 3400 Hz
Nyquist
Theorem states that sampling must be done at twice the highest frequency to
recreate. 4000 Hz was chosen as the maximum frequency, thus sa…Read More
The PSTN – Architecture, Switches
•PSTN
– Public Switched
Telephone Network
•As
the name says, it’s switched…
•Each
conversation requires a channel switched throughout the network
•Circuit
setup uses a separate out-of-band intelligent network (SS…Read More
5 Use Command Check network Connection
SOLUTION
The PING command sends a test packet of data to a designated IP address.Open up a DOS command prompt:
From the Windows Start menu, click Run. (In Windows Vista and newer, simply type the command i…Read More
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