A signal with $200mW$ power passes through $10$ devices,

each with an average noise of microwatts. What is the

SNR$?$ What is the

A file contains $2$ million bytes. How long does it take to

download this file using a $56Kbps?$ then $1Mbps?$

Which component of data communication system is

affected by noise?

What is the difference between internet model and TCP$/$IP

layer?

What is Data communication system made of$?$

Synchronous and Statistical time division multiplexing

which one do you think is better and why

What is the advantage of spread spectrum?

What is the difference between the Nyquist theorem and

Shannon Capacity?

What are the design issues with the Physical layer,

Application layer and Transport layer of the OSI model

Match the following to one or more layers of the OSI

model

i$.$ Reliable process to process message delivery

ii$.$ Route selection

iii. Define frames

What is the length of a bit in a channel with a propagation

speed of if the channel bandwidth is

i$.1Mbps$

ii$.10Mbps$

iii. $100Mbps$

We have a channel with bandwidth. If we want to send at$,$

what is the minimum What is SNR$?$