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CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
1

of
11

Department of Technical Education

DIPLOMA COURSE IN ELECTRICAL AND ELECTRONICS ENGINEERING

Third Semester


Sub:
COMMUNICATION AND COMPUTER NETWORKS


Sub
Code:

Contact Hrs/Week
: 04.


Contact Hrs
/Sem: 64



PART A


Communications


Chapte
r No:


Topic




No. of Hours



1

Communication Basics

10

2



Fiber

-

optic communication

4

3

Microwave techniques

4

4

Satellite communication

4

5

Telephony

4

6

Da
ta communication

4




PART B


Computer Networks


Chapter No:




Topic




No. of Hours



1

Networks




5

2

Transmission media




2

3





Networ
k Architecture,





2

4

Ethernet







2

5

Wireless LANS





3

6

Network
Internet work

Connectivity


6

7

WAN Technologies




3

8

Introduction Security

1

9

Industrial innovation





6










Test
s

&
Revision





4



_____



Total



6
4

















CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
2

of
11

CONTENT


PART


A COMMUNICATIONS






1
.0

Communication Basics







1.1

Communication system






1.2

Modulation







1.3

Demodulation






1.4

Radio transmitter

1.5

Radio receiver

1.6

Electromagnetic spectrum

1.7

Radio w
ave propagation







1.8
Frequency division Multiplexing






1.9

Time division Multiplexing












2.0 Fiber

optic Communication



2.1

Light wave communications






2.2

Optical transmitters and re
ceivers













3.0

Microwave

techniques







3.1

Microwave in perspective






3.2

Transmission lines, wave guides and cavity resonators




3.3

Microwave semiconductors






3.4

Microwave tubes







3.5

Microwave antennas















4.0

Introduct
ion

to Satellite Communications





4.1

Satellite orbits







4.2

Satellite Communication system





4.3

Satellite sub system







4.4

Application overview






5
.0

Telephony








5.1

Subscriber equipment






5.2

Electronic exchange







5.3

Cell
ular Telephony
system
.













6
.0

Data Communication










6.1

Data Communication Concept.



6.2

Modes of Transmission.


6.3

Characteristics of data Transmission Circuits



6.4

Modems




6.5

Data Communication applications













CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
3

of
11

Text Book







1.Communication and Computer Networks


K Shashidhar, Sapna Publications.




2.
Communication
-
III Edition
, by Frenzel
-

Tata Mc
-
Graw Hill








Reference Books:





1.

Principles of digital communication systems

K.V.K.K. Prasad.,
Dr
eamtech Tech


2.

Electronic Communication System

by Roody & Colens.,
PHI


3.

Telecommunication Switching System and Networks

by T.Viswanathan
P.H.I


4.

Data
Communication.

by william.L.Schweber
Mc
-
Graw Hill



5.

Electronic Communication System
by Kennedy

Tata Mc
-
Graw Hill



6.

Computer Networks Fundamentals and Application

by RS Rajesh, KS Eashwarakumar
Vikas
Publishing House


7.

Principles of communication
Engineering. By Anok Singh
-

S. Chand


8.

Principles of Electronic communications: Analog & Digital by Pradi
p Kumar Ghosh
-
Universities Press (India) Pvt. Ltd.










PART


B COMPUTER NETWORKS


1.0

Introduction to Networking



1.1

What is a Network?





1.1.1

Define a Computer Network






1.1.2

Discuss advantages of using a network





1.1.3

Describe LAN, M
AN and WAN




1.2

Network Configuration





1.2.1

Peer
-

to
-
Peer Network






1.2.2

Server Based Network





1.3

Network Topology





1.3.1

Bus, Ring, Star and Mesh





2.0

Transmission Media





2.1

Twisted Pair Guided Media





2.2

Optical fiber






2.
3

Radio Linkup Guided Media





3.0

Network Architecture, Protocol & Standards



3.1

Layers of OSI Model




3.2

The TCP/IP Architecture












4.0

Ethernet






4.1

Introduction





4.2

Overview Ethernet




4.3

Standard Ethernet(10 Mbps)




4.4

Fast E
thernet(100 BASE
-
T)



CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
4

of
11


4
.5

Gigabit Ethernet






5.0 Wireless LAN


5.1

working, types

frequency and applications


5.2

Wireless PANs








5.2.1

Bluetooth Technology






5.2.2

Bluetooth Packets























6.0

Internetwork and Internet
work Connectivity



A

Network Connectivity




6.1 switch







6.2

Interconnection of LAN through Back Bone




6.3

Repeaters






6.4

Bridges







6.5

Layer 2 switch




B

Internetwork Connectivity




6.6

Routers and Brouters




6.7

Layer 3 Switch




6
.8

Gateways







7.0

WAN Technologies






8


7.1

Telephone Lines





7.1.1

Dial UP lines






7.1.2

Leased Lines






7.1.3

Digital Connectivity







a) Digital Data
service (
DDS)







b) T1
, T3, T4





7.2

FDDI, SONET




7.3

Asymmetric Digital Subscri
be Line (DSL)





8.0

Introduction to Security




8.1

Network Security


















REFERENCE BOOKS






1

Local Area Networks
-
II Edition
, by

Gerd Keiser

-

Tata
-
McGraw Hill






2

Local Area Networks
-

I

Edition
,

by Behrouz A.Forouzan
-
Tata
-
McGraw Hill







3

MCSE Training Kit
-
III Edition
, P.H.I

Networking Essentials
plus

Microsoft Press





4

Network + Certification
,
P.H.I Training Kit






5

Guide to wireless Communicatio
n by Mark Ciampa Thomson Course
Technology


6

Data
communication and networks

James Irvine and David
Harley




Publishers: Wiley

India


CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
5

of
11




SPECIFIC INSTRUCTIONAL OBJECTIVES


PART


A COMMUNICATIONS


1.0


Communication Basics


10


1.1

Define Communication.






1.2


Identify various forms of
Communication

and

give examples






1.3



Draw Block Diagram of Communication systems
.



1.4



Define imp
ortant terms:
-

Frequency, Wav
elength, information, Message,






Noise, Distortion, bandwidth, base band, broadband,
analog communication
,



digital communication, simplex communication, half duplex,

full duplex


communication.




1.5



Define Modulation.







1.6


State the need for Modulation.






1.7


List types of Modulation.






1.8


Explain A.M., F.M
,

and
phase modulation
.




1.9


Explain the operatio
n of Amplitude modulation

with a diode (Frenzel ).



1.10



Define Demodulation.







1.11


Explain the operation of a diode dete
ctor circuit (Frenzel ).




1.12


Draw the block diagram of A.M. Transmitter
and explain

the operation of
ea
ch


major
circuit



1.13


Explain the basic concept
of superheterodyne Receiver.





1.14

Draw a block diagram of superheterodyne receiver
and explain

th
e function of



operation of each major section.




1.15


List
the major segments of Electromagnetic spectrum.



1.16

Name the three main types of Radio Wave

propagation and
explain

its behaviour.

1.17

Define the term multiplexing demultiplexing.


1.18

Explain the process of frequency division multiplexing an
d demultiplexing
.


1.19 Explain the basic concept of time division multiplexing





2.0


Fiber optic Communication


4




2.1
Draw the basic block diagram of
Fiber
-
optic co
mmunication system and explain



the
function of each part.



2.2
State the benefits of
fiber
-
optic cables over
electrical.
Cables

for communication





2.3
Explain Typical Communication applications of
fiber

optic cables



2
.4


Explain basic construction of fiber
-
optic cable.



2.5


Explain operation of LED transmitter.



2.
6

Explain operation of Photodiode fiber optic receiver.



3.0


Microwave techniques





4




3.1
State the importance of microwaves to the future of communications.



3.2
Define the term wave guide, explain how a wave g
uide works,
and calculate the


cut off
-
frequency of a wave guid
e.



CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
6

of
11



3.3

Define microstrip and stripline and tell how they are used.




3.4

Explain the physical structure of a cavity resonator and
tell what

cavity



resonators
are used for.



3.5


E
xplain klystron microwave tube operati
on and state where they are used.



3.6
Name common types of microwave antennas a
nd draw and explain horn
and


parabolic dish antennas.











4.0


Introduction to Satellite
Communications




4





4.1
Explain geo
synchronous orbit and

tell how it is used and how it is


accomplished.



4.2


Explain concept of s
atellite communication.



4.
3

Draw and explain with a block diagram of the transponder in satellite.





4.
4

Name the main
satellite
sub systems

of a e and
state its function
.







4.
5

Draw a basic block diagram of a
satellite e
arth station

and name the basic


subsystems and explain the function of each.




4.
6

Name common applications of satellites.






5.0


Telephony




4




5.1


Subscriber Equipment







5.1.1

Explain how speech is converted into electrical
energy by

means of a simple carbon
granule transmitter
and dynamic

microphone,







5
.
1.2

Explain how electrical e
nergy is converted into sound wave .by means of a rocking
armature receiver



5.1.3

Draw the schematic diagram of the Touch Tone Dialer and Electronic Ringer and
explain how it works.








William L. Schweber 323
-
328
,

Anthony U. Carist page 180
-
181




5.
1.4

Draw the subscriber circuit and explain its operation




Willian L. Schweber Fig 10
-
1 Page 317
-
319



5.2


Electronic Exchange.







5.2.1

State the need for electronic switching.





5.2.2

Explain with diagram centralized stored program control.






Ref: T.Viswanathan






5.3


Cellular Radio System.







5.3.1

Explain the concept behind the modern cellular telephone

system.




5.3.2

Explain

with general block diagram of cellular radio.



6.0

Data Communication




4




6.1

Data Communication Concept.







6.2

Understand the concept of data communication.




6.3

Explain serial communication and parallel communication with examples of their
case





6.4

Explain synchronous and Asynchronous Transmission process.



6.5

Know the relation between bandwidth, channel capacity and Bandwidth, distance.




6.6

Explain baud rate and describe how it may differ from information bit rate




6.7

Modems








6.8

Define the term modem and explain its operation and application.


CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
7

of
11



6
.9

Explain the process of modulation and demodulation with frequency Shift Keying
(FSK)
.





PART


B COMPUTER

NETWORKS


1.0

Introduction to Networking





5




1.1


What is a
Network?








1.1.1


Define a Computer Network






1.1.2


List advantag
es of using a network





1.1.3


Define LAN, MAN and WAN






1.1.4


Give two examples of LAN Configurations





1.1.5


Give two examples of WAN Configurations




1.2


Network Configuration







1.
2
.1


Explain Peer
-

to
-
Peer Network






1.
2
.2


Exp
lain Server Based Network






1.
2
.3


List three factors that can influence of whether to implement to implement a Peer
-




to
-
Peer Network or Server based Network Configuration






1.
2
.4


Describe the advantages of Peer
-

to
-

Peer
Network




1.
2
.5


Describe the advantages of Server based Network



1.
3


Network Topology








1.
3
.1


Define Topology







1.
3
.2


Define Physical Topology and Logical Topology




1.3.3


Identify the four Standard Topologies





1.3.4


Describe t
he advantages and Disadvantages of each Topology

1.3.5


State the factors to be considered in choosing a Network Topology
.


2.0

Transmission Media




2



2.
1


Describe characteristics and use of Twisted Pair cable in LAN



2
.
2


Describe characteri
stics and use of Optical
fiber

in LAN




2
.3


Explain use of Radio Link as Transmission media






3
.0

Network Architecture, Protocol & Standards


2




3
.1


Layers of OSI Model







3
.1.
1


Explain the Functionality o
f each layer of OSI model





3
.
2


The TCP/IP Architecture







3
.2.1


Explain the Functionality of each layer of TCP/IP




3.2.2


Compare TCP/IP with OSI Model





Ref: Ref1 P.No 28
-
53
,
Ref: 1 P.No 104
-
123,

Ref 2:P.No 165
-
177





4
.0

Ethernet






2





4
.1.1


Overview

of Ethernet







4
.1.2


List and Explain physical media in Standard Ethernet



4
.1.2


List and Explain physical media in Fast Ethernet



4
.1.2


List and Explain physical media in Gigabit Ethernet

CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
8

of
11

Ref:

Data communication and networks

James Irvine an
d David
Harley
-

Publishers: Wiley

India
, Page

No: 154 to 156



5
.0

Wireless LANs




3



5
.1

Wireless LAN Concepts







5
.1.1


Explain
briefly

how wireless Works






Ref 5: Chap 2 P.No 29






5
.1.
2


Know the types of Wireless LANs





5
.
1.
3


Know the Frequency of operation of Wireless LAN




5
.1.
4


Know the application of Wireless LANs






Ref 1: P.No 220 Fig 4.1, 4.2






5
.
1.
5


Explain with sketch Wireless interface Device
-
Access Point




5
.
1.6


Wireless Personal Area Network (P
ANs)






5
.1.
7


Know what
Bluetooth is






5
.1.
8


Explain the Blue tooth Technology





5
.1
.
9


Explain with a sketch Bluetooth Packet Format





Ref 1: P.No 241, Ref 5: P.No 140
-
161
,
Ref 5: P.No 2
-
3











6
.0

Network and Internet work Connectivity




6





A


Network Connectivity






6
.1

S
witch









6
.1.1

State
the importance of
switches
.





6
.2

State What
Back Bone Network is

and Show how networks are connected through
Back bone





Reference: Ref
4,

P.NO 10





6
.3

Explain with sketch
the

Functions

Performed by Repeater





Ref: Ref 2: P.NO 368






6
.4

Explain with sketch
the Functions

Performed by Bridge





Ref: Ref 1: P.NO 280






6
.5

Explain with sketch Layer
-

2
Switch (
LAN Switch)






Ref: Ref 1: P.NO 293







B



Inter
-
Netwo
rk Connectivity






6
.6

Explain with sketch
the Functions

Performed byRouter





Ref: Ref1 P.No 288, Ref 2 P.No 375





6
.7

Explain with sketch
the Functions

Performed by Brouter





Ref 2 P.No 379







6
.8

Explain with sketch
the Functions

Performed b
y Layer 3 Switch





Ref: Ref 1: P.NO 297






6
.9

Explain with sketch
the Functions

Performed by Gateways





Ref: Ref 2: P.NO 378





7
.0

WAN Technologies



3



7
.1

Telephone Lines






CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
9

of
11



7
.1.1

Explain Dial
-
Up Telephone lines






7
.1.2

Explain Leased (Dedicated) Telephone lines



7
.
2


Explain DSL




(Ref

3: Fig 7.20, P. No 299)





7
.
3

Digital Connectivity








a) Explain with a Diagram Digital Data Service
Line (
DDS)





Connected to two remote networks





b) Explain T1,T
3, T4 and Switched 56 service





(Ref

3: Fig 7.24, P. No 309)





7
.
4

Explain FDDI







7
.
5




Explain Synchronous Optical
Network (
SONET)


7
.
6


Asymmetric Digital Subscribe Line (ADSL)




Ref:

Data communication and networks

James Irvine and
David
Harley




Publishers: Wiley

India
, Page No:
220
, Ref 3:

P.No
.

297 to 320













8
.0

Network Security



1




8
.1

Explain Briefly Basic Security Threats




8
.2

Explain Briefly Firewalls
































MODEL QUEST
ION PAPER

CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
10

of
11


Third Semester Diploma Examination

ELECTRICAL BOARD

COMMUNICATION AND COMPUTER NETWORKS

TIME
: 3

Hours

Max Marks: 100

Note: i) Question No. 1 is com
pulsory.


ii) Answer any two full questions each from sections II, III & IV



Section I


1. a) Fill in the blanks.







(5
x
1=5)


i) The primary benefit of multiplexing is ______________


ii) A hollow metal pipe used to carry micro waves is calle
d as___________


iii) Data communication is the transmission of _____________information.


iv) The top most layer in the OSI model is _____________


v) The basic hardware device in a WAN is called __________



b) Explain Peer to Peer network.









(5)


Section II


2. a) Define modulation.








(3)


b) Explain with a neat circuit diagram working of amplitude modulation


Using Diode.









(
5
)


c)
Explain with a neat diagram working of
Super

heterodyne receiver


(
7
)


3. a)
E
xplain Frequency Division Multiplexing with a neat diagram.


(6)


b)
Explain
with

block diagram Fib
e
r

Optic

Communication system.


(
6
)


c)
List the benefits of Fiber Optic cables






(
3
)









4. a)
With a neat diagram explain working of Klystran

microwave tube


(8)


b)

Explain parabolic dish antenna.






(4)


c
) List the applications of satellites.






(
3
)













Section III

CURRICULUM
2009


10
, With

Effect From 2010


11




EE



Third Semester


Communication and Computer Networks


Page
11

of
11


5. a)

Explain with a diagram working of telephone transmitter.



(5)


b)
With a neat dia
gram explain touch tone dialing.




(5)



c) Explain serial and parallel communication.





(5)


6. a) Explain with a neat sketch working of FSK Modem.




(8)


b) Define Baud rate.








(2)


c) Define LAN and WAN.








(5)


7. a) List the advantages of networking.






(4)


b) With a neat sketch explain star topology.





(6)


c) List the characteristics of optical fibers used in LAN.




(5)


Section IV



8. a) Explain the Layers of OSI Model.






(9)


b) List the types of Wireless LAN.






(2)


c) Explain Bluetooth technology.






(4)


9. a) Explain with sketch functions performed by Router.




(5)


b) Explain with a neat sketch Backbone network.




(8)


c) Define Repea
ter.








(2)


10.a) Explain Dial up and leased telephone lines.





(4)


b) Explain Synchronous Optical Network (SONET).




(6)


c) Explain briefly Firewall.







(5)