Total No. of Questions 18] [Total No. of Pages 02
M.Sc. DEGREE EXAMINATION, MAY 2017
First Year
INFORMATION TECHNOLOGY
Computer Networks
Time 3 Hours Maximum Marks 70
Section A x 15 45)
Answer any three of the following
Q1) Discuss about different layers of TCP/IP protocol.
Q2) Explain about LAN architecture and LAN topologies in detail.
Q3) What are the different approaches in packet switching? Explain them in detail.
Q4) Write about Routing Mechanisms? Explain about any routing algorithm with an
suitable example?
Q5) Explain in detail about the Data Encryption Standard.
Section B x 4 20)
Answer any five questions
Q6) What are the three criteria necessary for an effective and efficient network?
Q7) What is baseband transmission? Briefly explain it.
Q8) Briefly explain multiple access mechanism.
Q9) Write note on routing in Ad Hoc Networks.
Q10) Write short notes wireless LAN.
Q11) What is role of DNS in computer networks?
Q12) What are the advantages and disadvantages of public key encryption?
Q13) Write about IP address calculation.
Section C x 1
Answer all questions
Q14) Define flooding.
Q15) What is meant by congestion?
Q16) Define multiplexing.
Q17) Define checksum.
Q18) Define public key.