Download JNTUH MCA 3rd Sem R09 2017 August F3302 Computer Networks Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R09 2017 August F3302 Computer Networks Previous Question Paper

Code No: F3302















R09

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, August - 2017

COMPUTER NETWORKS

Time: 3hrs













Max.Marks:60

Answer any five questions

All questions carry equal marks

- - -



1.a)

What is Analog and Digital Signal? Explain each with suitable example.

b)

What are the responsibilities of ISO/OSI reference model layers? Explain in details.[6+6]


2.a)

Write briefly about digital transmission , multiplexing and Transmission media (Guided
and Un Guided)

b) List the differences among circuit switched networks, Datagram networks, and virtual

circuit networks.

















[6+6]



3.a)

What are design issues of Data Link layer? Explain with suitable example

b)

Discuss the HDLC and Point to Point Protocol (PPP).







[6+6]


4.

Write Short notes
a) Fast Ethernet.
b) Giga-Bit Ethernet
c) Wireless LANs.

















[12]


5.a)

Write briefly about the backbone networks ,Virtual Networks and wireless WANs.

b)

Discuss the advantages of SONET and its frame format.







[6+6]


6.

Write briefly about the multicast routing protocols. Discuss the internetworking and
tunneling used in network layer.













[12]


7.a)

Discuss the TCP and UDP header format with neat diagram.

b)

How congestion control and QoS will be achieved in transport layer? Explain. [6+6]


8.

What are FQDN and PQDN? Explain DNS in Internet.







[12]



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