Dr. A.P.J. Abdul Kalam University
Master of Computer Application
Second Semester Main Examination, June-2021
Computer Network [MCA202]
Time: 3:00 Hrs _______ Max Marks 70
Note: Answer any five questions. All questions carry equal marks.
Q.1 (a) Describe the ISO-OSI model with its different layers and their functions?
(b) Explain the communication media and principles IEEE standards?
Q.2 (a) What is a routing protocol? Explain in detail about the protocol data
units? What is its Key Element?
(b) What is error control? Explain CRC with an example?
Q.3 (a) Explain Dijkstra’s algorithm with an example.
(b) Explain the Bellman Ford algorithm for routing in network with an
example.
Q.4 (a) Explain CSMA and CSMA/CD protocols? Also discuss channel
allocation?
(b) Define ATM? Describe the ATM service and Architecture.
Q.5 (a) What is DNS? How resources records and maintained in DNS?
(b) What is SNMP? Explain different security level implementing in SNMP?
Q.6 (a) Explain Network security. Describe cryptography.
(b) Why do HTTP, FTP, SMTP, POP3and IMAP run on top of TCP rather
than on UDP? Discuss.
Q.7 (a) Give the Difference between IPV4 and IPV6 in details?
(b) What is IP addressing? What are the different addresses?
Q.8 Write short notes on:
(a) DQDB Protocol
(b) FDDI Protocol
(c) Fiber Optic and HFC
Scanned Copies:
%20and%20F.Y.%20&%20S.Y.B.Sc.%20Comp.%20Sci.%20and%20F.Y.B.Sc.%20N.T%20(2013-14)OldQnpapers1314_page-0129.jpg "University of Mumbai S.Y.B.Sc. (I.T) (Sem - IV) Software Engineering (Old & Rev) Old Question Papers June 2014")
%20and%20F.Y.%20&%20S.Y.B.Sc.%20Comp.%20Sci.%20and%20F.Y.B.Sc.%20N.T%20(2013-14)OldQnpapers1314_page-0125.jpg "University of Mumbai S.Y.B.Sc. (I.T) (Sem - IV) Operating System (Old) and Quantitaive Technology (Rev) Old Question Papers June 2014")
%20and%20F.Y.%20&%20S.Y.B.Sc.%20Comp.%20Sci.%20and%20F.Y.B.Sc.%20N.T%20(2013-14)OldQnpapers1314_page-0131.jpg "University of Mumbai S.Y.B.Sc. (I.T) (Sem - IV) E-Commerce (Old) and Embedded System (Rev) Old Question Papers June 2014")
