B.TECH - Semester 5 data communication Question Paper 2019 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- 506 : DATA COMMUNICATION (F) Time : 3 Hours Max. Marks : 100 Answer all questions :
- What is the difference between simplex and half-duplex communication models?
- What does the Shannon capacity have to do with communications ?
- A light signal is travelling through a fiber. What is the delay in the signal if the length of the fiber-optic cable is 50 m and 2 Km (assume the propagation speed of $2 \times 10^{8} \mathrm{~m}$ ) ?
- State the significance of Asynchronous transmission.
- Distinguish between data rate and signal rate.
- Which characteristics of an analog signal are changed to represent the digital signal in each of the following digital-to-analcg conversion ? i) ASK ii) FSK iii) PSK
- Describe the goals of multiplexing.
- What is the Hamming distance ? What is the minimum Hamming distance ?
- List four major components of a packet switch and their function.
- What is the purpose of GPS ? Answer any one question from each Module : ( $\mathbf{3} \boldsymbol{\times} \mathbf{2 0} \boldsymbol{=} \mathbf{6 0}$ Marks)
- OR
- i) NRZ-L ii) Manchester iii) MLT-3 iv) 2B1Q
- Answer the following questions : i) What is the size of an output frame in bits ? ii) What is the output rate ? iii) What is the duration of an output frame ? iv) What is the output data rate ?
- i) The size of the dataword and the size of the codeword ii) The size of the divisor and the remainder iii) The degree of the polynomial generator and the size of the divisor iv) The degree of the polynomial generator and the size of the remainder O...