Master of Science II Electronics (Communication Science)
Examination: Oct Nov 2016 Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SJ
356
Wednesday
23/11/2016
02:30 PM
to
05:00 PM
Internetworking and Data
communication
C
XII
Instructions: Q.No.1 and 2 are compulsory.
Answer any three questions from Q.No.3 to Q.No.7.
All questions carry equal marks.
Total Marks: 70
Q.1 Choose the correct alternatives 08
OSI stands for
Open system information Operating system interface
Optical service implementation None of the above mention
Which of the following are benefits of using a layered network model?
It facilitates troubleshooting
It breaks the complex process of networking into more manageable
chuncks.
It allows layers developed by different vendors to interoperate.
All of the above
The layer of the OSI model, from the top down are
Physical, Data Link, Network, Transport, Session, Presentation,
Application
Application, Presentation, Session, Transport, Network, Data Link,
Physical
Application, Encryption, Network, Transport, Logical Link Control,
Physical.
Session, Presentation, Data Transport, MAC, Network, Physical
The OSI model has layers
4 5
6 7
Which of the following are Transport layer protocols?
CISC TCP UDP
HTTP FTP ATM
Which of the following are considered to be the upper layer protocols?
Application, Presentation Session
Application
Application, Presentation, Session Transport
Application Presentation
Flow control takes place at what layer?
Transport Application
Data Link Network
Page 1 of 2
The is responsible for carrying packets
Network Dump
Logical Sample
State True or false: 06
Bridges Routers work on same principle.
Terrestrial Microwave is an unguided media.
Routing can be used from mobile hosts.
Congestion control can be done in virtual subnets choke packets.
Domain name specification is website address
Sliding window is a Data Link protocol.
Q.2 What is the 'channel allocation problem? 05
List the modes of operation of HDLC and elaborate on them. 05
Why do we need to establish layers in a protocol? 04
Q.3 State the functions of each layer in an OSI model. 10
Compare between LAN and WAN 04
Q.4 What is congestion in network? How is it controlled in TCP? 10
Compare between flow based and mobile host routing. 04
Q.5 Explain the shortest path routing algorithm 10
Compare between flow based and mobile host routing. 04
Q.6 State and elaborate on the design issues of physical later 08
Compare between TCP/IP and OSI model. 06
Q.7 With block schematics explain the different types of modems. 08
Why do we need computer network? State the applications of computer
networks.