MCA-19
December Examination 2017
MCA IIIrd year Examination
Data Communication and Computer Networks
Paper MCA-19
Time 3 Hours Max. Marks 80
Note: The question paper is divided into three sections B and C. Write answers as per the given instructions.
Section A 8 × 2 16
(Very Short Answer Questions)
Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum up to 30 words. Each question carries 2 marks.
What do you understand by Network Topology?
What is Analog transmission?
What is Broadcasting?
What is meaning of protocol?
What is DNS?
What is meaning of SMTP?
Write any two benefits of Computer Networking?
(viii) What is UDP?
807
MCA-19 200 2 (P.T.O.)
807
MCA-19 200 2
Section B 4 × 8 32
(Short Answer Questions)
Note: Answer any four questions. Each answer should not
exceed 200 words. Each question carries 8 marks.
Discuss the types of networks.
Discuss various Modes of Communication?
Discuss Virtual LANs.
Explain role of internet reference model.
Discuss multiplexing and various types of it.
Describe functioning of PPP stack.
Describe routing and its use in computer networking.
Explain working of Transmission Control Protocol?
Section C 2 × 16 32
(Long Answer Questions)
Note: Answer any two questions. You have to delimit your each
answer maximum up to 500 words. Each question carries
16 marks.
10) Explain mode of communication with their suitable examples.
11) Explain the working of various protocols used in network layer
protocols and also show their frame formats.
12) Write a short note on
Various type of Ethernet.
Connection oriented and connection less services.
13) Explain various coding methods with suitable examples in
digital transmission.