M.C.A (Science) (Semester III) (CGPS) Examination, 2017
COMPUTER COMMUNICAION NETWORK wateriI
Day Date: Tuesday, 18-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
N.B. Questions NO.1 and 2 are Compulsory.
Attempt any three questions from Q.NO.3 to Q.NO.7
Figures to the right indicate full marks.
Q.1 Choose the correct alternative given in the bracket. 10
State whether the following is True or False.
In bus topology, heavy Network traffic slows down the bus
speed.
It is multipoint configuration.
True, True True, False
False, True False, False
Which one of the following is a transport layer protocol used in
Internet?
TCP UDP
Both and None of the mentioned
Which sublayer of the data link layer performs data link
functions that depend upon the type of medium?
Logical link control sublayer
Media access control sublayer
Network interface control sublayer
None of the mentioned
Which one of the following protocol delivers/stores mail to
receiver server?
Simple mail transfer protocol
Post office protocol
Internet mal access protocol
Hypertext transfer protocol
Which one of the following computer network is built on top of
another network?
Prior network Chief network
Prime network Overlay network
Socket-style API for windows is called.
Wsock Winsock Wins d)None of the mentioned
Which one of the following is a version UDP with congestion
control?
Datagram congestion control protocol
Stream control transmission protocol
Structured stream transport
None of the mentioned
Page 1 of 2
SLR-K 29
8c) Which of this not a network edge device?
PC Smartphones Servers Switch
The network layer concerns with

Bits
Frames Packets None of the mentioned
10) Which one of the following allows a user at one site to
establish a connection to another site and then pass
keystrokes form local host to remote host?

HTTP
b)FTP Telnet None of the mentioned
State True/False 04
Message travel from sender to receiver via a medium using a
protocol.
Transmission data rate is decided by transport layer.
User datagram protocol is called connectionless because all
UDP packets are treated independently by transport layer.
Physical, data link and network layers are network support
layers and session, presentation and application layers are
user support layers.
Q.2 Write a short note on following: 08
Flow Control
Computer network home applications.
Answer the following: 06
Describe one-bit sliding windows protocol.
What is framing? Name of different framing methods.
Q3 Answer the following: 14
Describe the general principal of congestion control
What is Internet? Explain IP addresses in details. 06
Q4 Answer the following:
Describe the wireless TCP and UDP in details. 14
Write note on Transport service primitives.
Q.5 Answer the following:
Describe in details Domain Name System.
Explain architecture and services of Electronic mail
Q.6 Answer the following: 14
Explain the Elementary data link protocol.
Write a short no protocol hierarchies.
Q.7 Answer the following: 14
Write a short note on NSFNET.
What is computer network and what are the business application?