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Wednesday, September 2, 2015

Question Paper of "DATA COMMUNICATION NETWORKS" for M. Tech (ECE) (Sem.-1st), Subject Code: EC-503, Paper ID [ E-0563 ], PTU Question Paper.










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Roll No……
Total No. of Questions: 08

M. Tech (ECE) (Sem.-1st)
DATA COMMUNICATION NETWORKS
Subject Code: EC-503
Paper ID: [E-0563]

Time: 3 Hrs.                                                                 Max. Marks: 100
Instruction to Candidates:
1.     Attempt any FIVE questions.
2.     All questions carry EQUAL marks.

Q1.
(a)  What are the different types of transmission impairments for guided media? Explain in detail.
(b) Explain the different techniques used for analog data digital signals encoding formats.

Q2.
(a)  A signal is quantized using 10 bit PCM. Find the signal to quantization noise ratio.
(b) What is difference between error detection and error correction? Explain digital CRC in detail with the help of example.

Q3.
(a)  What is meaning of Error control and its types? Explain in detail.
(b) What is the difference between Synchronous and Asynchronous transmission?

Q4. What is the difference between TDM and STDM in Detail? How error and flow control and accomplished in synchronous time division multiplexing in term of data link control and physical layer?
Q5. List the advantages of UDP over TCP. Describe the steps for establishing and terminating a TCP connection.
Q6. Explain Architecture and working of ATM. Also discuss header error control operation of receiver.
Q7. What are the advantages of IPv6 over Ipv4? Describe three IPv6 special addresses.
Q8. Write a short note on any two:
(a)  Intrusion detection system
(b) FDDI
(c)  Window NT operating system.



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