Question Paper: Computer Networks : Question Paper May 2016 - Information Technology (Semester 4) | Mumbai University (MU)
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Computer Networks - May 2016

Information Technology (Semester 4)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.


Answer any four

1(a) Compare slotted ALOHA and Pure ALOHA.(5 marks) 1(b) Explain selective repeat protocol.(5 marks) 1(c) Explain TCP timer(5 marks) 1(d) Compare Linux and windows operating system(5 marks) 1(e) Explain PSTN.(5 marks) 2(a) What is OSI model? Give the functions and services of each layer.(10 marks) 2(b) Explain Guided Transmission media in detail.(10 marks) 3(a) What are the different types of routing algorithms in detail?(10 marks) 3(b) Explain (i) IP address (ii) Subnet Mask(6 marks) 3(c) An IPV Packet has arrived with the first '8 bits' as shown : 0100 0010. The receiver discards? Why?(4 marks) 4(a) Draw and explain TCP segment header.(10 marks) 4(b) Explain TCP Congestion Control.(10 marks) 5(a) What is HDLC? Explain the frame formats of I-frame, U-frame and S-Frame?(10 marks) 5(b) Compare Connectionless and connection oriented services.(5 marks) 5(c) Explain Traditional Ethernet(5 marks)


Write short notes on following (any four)

6(a) Compare Lan, MAN, WAN(5 marks) 6(b) BGP(5 marks) 6(c) Explain CRC with example(5 marks) 6(d) CDMA/CA(5 marks) 6(e) bridges, Router, Switches.(5 marks)

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