FUNDAMENTALS OF COMPUTER GRAPHICS

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BSCIT 42

B.Sc. IT (Sem.


IV) Examination, January, 2004

FUNDAMENTALS OF COMPUTER GRAPHICS

Time: 3 Hours Max. Marks: 75

PART


A

(15
X
1 = 15)

1. Fill in the gaps:

a) Network of computer networks is known as __________________________.

b) A set of
protocols which works together is termed as ___________________.

c) OSI reference model has ____________________________ layers.

d) Data link layer provides services to the _____________________________.

e) ASCII stands for _____________________________
__________.

f) IP transports data in packets called _____________________________.

g) ARP is a protocol in the _______________ layer of the TCP/IP model.

h) Physical addresses can be either unicast, __________ or ___________________.

i) There are _____
__________ IP address classes.

j) _______________________ and ________________ are 2 types of IP routing.

k) Error reporting messages are ________________ messages.

l) Port number 53 used by UDP returns _______________ given the domain name.

m) _______
_______ provides reliable stream oriented process to process
communication.

n) A server issues a ______________ open while a client issues a ___________
open.

o) FTP uses port __________ for control connection and port _________ for data
connection.

2.
Write any 2 of the following:
(5
X
2 = 10)

a) Layers in the TCP/IP model.

b) Tasks performed by the transport layer.

c) Levels of addressing in TCP/IP.

d) Error
-
reporting messages.

e) Services offered by TCP.

PART


B

Answer any
five
of the followi
ng questions :
(5
X
10 = 50)

1. What are functions and services offered by the transport and presentation layer in the ODI Reference
Model.

2. List the layers in the TCP/IP model. Explain the Network and Transport layers.

3. a) Explain in brief the diff
erent internet addressing mechanism.

b) Differentiate between direct and indirect routing.

4. Write a note on RARP.

5. a) How is checksum calculated for the UDP datagram?

b) Discuss encapsulation and decapsulation mechanism in UDP.

6. Explain the 3
-
wa
y
-
handshaking for connection establishment in TCP.

7. Discuss :

a) Control connection in FTP.

b) Data connection in FTP.

8. Write a note on commands processing. Describe the groups into which commands can be divided.

BSIT 42

IV Semester B.Sc. (I.T.) E
xamination, July 2005

COMPUTER NETWORKS


Time: 3 Hours











Max. Marks: 75


Instruction :

Answer
all
questions from part
A,

and answer any f
ive

question From Part
B.


PART


A

1.

What is protocol

?








(
10x2+5x1=25)

2.

define IP ad
dressing

?

3.

What are multihomed devices
.

4.

Define IP datagram
.

5.

What is meant by routing
.

6.

Explain
query messages
.

7.

What
is meant by hand shaking

?

8.

What are
port numbers

?

9.

What is called as lost segment
.

10.

Define checksum
.

11.

Expand the

following terms:


a)

TCP


b)

FTP


c)

ARP


d)

I
CMP


e)

UDP

PART


B

Answer any
five
:











(5x10=50)

1.

Give an detailed account on OSI Protocols, architecture and the layers
.

2.

Explain the ARP address resolution protocols.

3.

Give an detailed accou
nt on the internet protocols
.

4.

Explain
in detail the functioning of a application layer with client server model
.

5.

What are the user datagram protocols ? Add a note on their significance
.

6.

List the error reporting messages present in ICM
P
.

7.

What ar
e the services offered by UDP? List
some of its
uses
.

8.

Give
an account on the role of network layer and session layers in the OSI model.

BSIT 42

IV Semester B.Sc. (I.T.) Examination, Dec 2005/ Jan 2006

COMPUTER NETWORKS


Time: 3 Hours











Ma
x. Marks: 75


Instruction :

Answer
all
questions from part
A,

and answer any f
ive

question From Part
B.


PART


A

1.

What is meant by Physical address ?







(
10x2+5x1=25)

2.

What is in direct routing ?

3.

Define process.

4.

Explain encapsulatio
n.

5.

What is meant by port address.

6.

Which layer in the network is the dialog controller?

7.

What is meant by static routing table ?

8.

Briefly fragmentation ?

9.

Briefly explain types of ICMP messages.

10.

Explain Multihomed devices.

11.

Expand the f
ollowing terms:


a)

RARP


b)

IFTF


c)

ICMP


d)

TCP


e)

FTP.

PART


B

Answer any
five
:











(5x10=50)

1.

What are the responsibilities of Network Layer? Explain .

2.

Explain the different levels of addressing in TCP/IP Model.

3.

Explain briefly about

Unicast , Multicast and Broadcoast address.

4.

Write the IP header diagram and explain its fields.

5.

Explain the uses of UDP Protocol.

6.

Explain UDP Checksum computation.

7.

Explain the ARP Packet Format.

8.

Write down the different types of ICMP Messag
es.



BSIT 42

IV Semester B.Sc. (I.T.) Examination, July/August 2006

COMPUTER NETWORKS

Time: 3 Hours











Max. Marks: 75


Instruction :

Answer
all
questions from part
A,

and answer any f
ive

question From Part
B.


PART


A

1.

What is meant by IP

address ?








(
10x2+5x1=25)

2.

What is multi homed systems ?

3.

Define checksum.

4.

Explain Port Number.

5.

Explain multiplexing and demultiplexing.

6.

Explain IP Routing Table.

7.

What is meant by Direct Routing ?

8.

What are Protocols ?

9
.

Define Process.

10.

Explain socked address.

11.

Expand the following terms:


a)

ARP


b)

WAN


c)

ICMP


d)

IRTF


e)

FTP.

PART


B

Answer any
five
:











(5x10=50)

1.

Explain the OSI model with all its layers.

2.

What are the responsibilities of netwo
rk layer ? Explain.

3.

Explain Fragmentation of Datagram and what are the steps followed to fragment the datagram.

4.

Explain the IP address classes.

5.

Explain ARP Packet Format.

6.

Explain encapsulation and decapsulation mechanism used in UDP.

7.

Explain

TCP segment.

8.

Explain UDP datagram.

BSIT 42

IV Semester B.Sc. (I.T.) Examination, Dec. 2006/Jan. 2007
.

COMPUTER NETWORKS
.

Time: 3 Hours











Max. Marks: 75

Instructions: Answer all questions from Part
-

A and answer any
five

questions from Part
-

B.

PART
-

A

1.

What is meant by protocol architecture?





(lOx2+
5
xl=2
5
)

2.

What is server
-
point addressing?

3.

Define checksum.

4.

Briefly explain Fragmentation.

5.

Explain multiplexing and demultiplexing.

6.

Explain IP Routing Table.

7.

What is m
eant by Indirect Routing?

8.

What are Protocols?

9.

Define Process.

10.

Explain encapsulation.

11.

Expand the following terms:

a) ARP

b) WAN

c) ICMP

d) IETF

e) FTP.

PART
-

B

Answer any five:










(5x10=50)

1.

Explain the OSI model with all its lay
ers.

2.

What are the responsibilities of network layer? Explain.

3.

Explain the IP address classes.

4.

Explain ARP Packet Format.

5.

Explain encapsulation and decapsulation mechanism used in UDP.

6.

Explain TCP segment.

7.

Explain UDP datagram.

8.

W
rite down the different types of ICMP Messages.

-------------------------

BSIT 42

IV Semester B.Sc. (I.T
.) Examination, July/August 2007

COMPUTER NETWORKS

Time: 3 Hours











Max. Marks: 75


Instruction :

Answer
all
questions from part
A,

and an
swer any f
ive

question From Part
B.


PART


A

1.

What is meant by
protocol architecture

?







(
10x2+5x1=25)

2.

What is
peer to peer process

?

3.

Explain canonical representation of Presentation layer
.

4.

Explain
multicast and broadcast concepts
.

5.

Explain
function of flags bits used in IP datagram
.

6.

Explain
internet checksum
.

7.

Explain function port number

?

8.

Explain function of URG and PSH flags in TCP header

?

9.

Explain Encapsulation and De
-
capsulation
.

10.

Explain
concurrency
.

11.

Ex
pand the following terms:


a)

ARP


b)

ICMP


c)

TCP


d)

SNMP


e)

RIP

PART


B

Answer any
five
:











(5x10=50)

1.

Explain the OSI
-
ISO network model.

2.

Explain the functionalities and the services offered by the transport layers of the OSI model
.

3.

E
xplain
different addressing mechanisms used in TCP/IP model
.

4.

What are routing table ? Why it is required ?

5.

Explain IP header diagram. Explain each field
.

6.

Explain
RARP mechanism
.

7.

Explain
pushing data operation in TCP
.

8.

Explain
Client
-
server mo
del
.