Question Paper: Computer Networks : Question Paper Dec 2016 - Electronics & Telecomm (Semester 7) | Pune University (PU)
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Computer Networks - Dec 2016

Electronics & Telecom Engineering (Semester 7)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS
(1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks.


Solve any one question from Q.1(a,b)& Q2.(a,b)

1(a) Classify different transmission media. Give advantages and disadvantages of fiber cable?(6 marks)


Solve any one question from Q.1(a,b) & Q.2(a,b)

1(a) Classify different transmission media. Give advantages and disadvantages of fiber cable?(6 marks) 1(b) Explain communication in Datagram Network?(4 marks) 1(b) Explain communication in Datagram Network?(4 marks) 10(a) Explain FTP and TELNET in detail with respect to Server Client communication?(8 marks) 10(a) Explain FTP and TELNET in detail with respect to Server and Client communication?(8 marks) 10(b) How does electronic mail system work? What is the role SMTP and POP-3 sever in E-mail system?(8 marks) 10(b) How does electronic mail system work? What is the role SMTP and POP-3 server in E-mail system?(8 marks) 2(a) State and explain stop and wait ARQ protocol?(6 marks) 2(a) State and explain stop and wait ARQ protocol?(6 marks) 2(b) Write a short note on Gigabit Ethernet?(4 marks) 2(b) Write a short note on Gigabit Ethernet?(4 marks)


Solve any one question from Q.3(a,b)& Q.4(a,b)

3(a) Explain and correlate any four connecting devices with OSI reference model?(4 marks)


Solve any one question from Q.3(a,b) & Q.4(a,b)

3(a) Explain and correlate any four connecting devices with OSI references model?(4 marks) 3(b) Explain flow control in data link layer?(6 marks) 3(b) Explain flow control in data link layer?(6 marks) 4(a) Compare Bluethooth with Zigbee?(4 marks) 4(a) Compare Bluetooth with Zigbee?(4 marks) 4(b) What characteristics can be used to group stations in VLAN?(6 marks) 4(b) What characterstics can be used group stations in VLAN?(6 marks)


Solve any one question from Q.5(a,b,c)& Q.6(a,b,c)

5(a) Explain Ipv6 protocol?(5 marks)


Solve any one question from Q.5(a,b,c) & Q.6(a,b,c)

5(a) Explain IPv6 protocol?(5 marks) 5(b) Explain unicast and multicast routing? Give one application of multicasting.(6 marks) 5(b) Explain unicast and multicast routing? Give one application of multicasting.(6 marks) 5(c) Explain remote and mobile host communication in mobile IP?(6 marks) 5(c) Explain remote and mobile host communication in mobile IP?(6 marks) 6(a) What is ICMPv4? Explain general format of ICMPv4 messages?(5 marks) 6(a) What is ICMPv4? Explain general format ICMP4 messages?(5 marks) 6(b) Explain different performance parameters of Network layer?(6 marks) 6(b) Explain different performance parameters of Network layer?(6 marks) 6(c) Explain different network layer services?(6 marks) 6(c) Explain different network layer services?(6 marks)


Solve any one question from Q.7(a,b,c)& Q.8(a,b,c)

7(a) Explain various transport layer protocols?(7 marks)


Solve any one question from Q.7(a,b,c) & Q.8(a,b,c)

7(a) Explain various transport layer protocols?(7 marks) 7(b) List the services provided to upper layers by transport layer. Explain any one in detail.(6 marks) 7(b) List the servcies provided to upper layers by transport layer. Explain any one in detail.(6 marks) 7(c) Explain what is socket?(4 marks) 7(c) Explain what is socket?(4 marks) 8(a) Explain port numbers and socket addresses?(7 marks) 8(a) Explain port numbers and socket addresses?(7 marks) 8(b) Explain the features of SCTP?(4 marks) 8(b) Explain the features of SCTP?(4 marks) 8(c) Explain connection establishment and connection termination with respect to the transport layer?(6 marks) 8(c) Explain connection establishment and connection termination with respect to the transport layer?(6 marks)


Solve any one question from Q.9(a,b)& Q.10(a,b)

9(a) Compare symmetric key cryptography with asymmetric key cryptography. Explain RSA algorithm.(8 marks)


Solve any one question from Q.9(a,b) & Q.10(a,b)

9(a) Compare symmetric key cryptography with asymmetric key cryptography. Explain RSA algortihm.(8 marks) 9(b) Write a short note on:
i) WWW
ii) HTTP
(8 marks)
9(b) Write a short note on: i) WWW
ii) HTTP
(8 marks)

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