OSI Model and
Q & A Sessions
What is a protocol?
A specific set of communication rules required to communicate between two
devices is called a protocol. There are many ways computers can communicate
with each other, some examples of these different protocols include PPP,
Prepared by Arzoo Atiq
Digital Data, Analog Signal
ASK, PSK, FSK
Analog Data, Digital Signal
Packet Tracer Activities
2 small activities
Digital Data Analog Signal
Lecture - 2
IP Address Classes
Class A 1 127 (Network 127 is reserved for loopback and internal testing)
Leading bit pattern 0
Class B 128
INFORMATION TECHNOLOGY PROGRAMME
7.210 COMPUTER NETWORKS II
Assignment: Semester 2, 2016
July 29, 2010 (Week 10)
E-learning Drop box OR Via email
Without prior permission from the lecturer, and/or a medical certificate, assignments handed in a
The concept is if we have link from A to B, we know the techniques to
get data from A to B.
There is a signal that is transferred from A to B.
What if we have more than one data to be sent from A to B?