Exam Details

Subject data communication networks
Paper
Exam / Course m.sc. computer science
Department
Organization alagappa university
Position
Exam Date December, 2017
City, State tamil nadu, karaikudi


Question Paper

M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Computer Science
DATA COMMUNICATION NETWORKS
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define Data communication.
2. List out various transmission modes.
3. Name the services provided by the application layer in
the Internet Model.
4. What are the differences between parallel and serial
transmission.?
5. List the types of errors.
6. What is the use of WDM?
7. What is Repeater?
8. What is hop-count routing?
9. In the Client Server model, what is the role of client
program and what is the role of server program.
10. What are the three functions can SNMP perform to
manage network devices?
Sub. Code
551104
RW-980
2
WK16
Part B x 5 25)
Answer all questions choosing either or
11. Discuss about various categories of networks.
Or
Discuss about the following
Star Topology
Line configuration
12. Explain about periodic analog signals.
Or
Explain in detail about digital data transmission.
13. Discuss about transmission impairment.
Or
Explain about Guided Media.
14. Explain about Packet Switching techniques.
Or
Discuss about Bridges.
15. What is DNS? Discuss its types.
Or
Explain about Telnet file transfer protocol.
RW-980
3
WK16
Part C x 10 30)
Answer any three questions.
16. Explain the following
Protocol and Standards
Topology
17. Explain in detail about OSI reference model.
18. Explain briefly about cyclic redundancy check with
example.
19. Explain distance vector routing algorithm with example.
20. Discuss the following
TFTP
SMTP
———————


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