bca3040 smu bca summer 2016 (oct/nov 2016 exam) IIIrd sem assignment

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Summer 2016, ASSIGNMENT

PROGRAM BCA (REVISED FALL 2012)

SEMESTER 3

SUBJECT CODE & NAME BCA 3040– DATA COMMUNICATION

BK ID B1644 CREDITS 4 MAXIMUM MARKS 60

Q1 Why is received signal not as same as transmitted signal? Explain

in brief.

ANSWER - Analog signal consist of varying a voltage with time to represent an information steam. If the transmission media were perfectly, the receiver could receive exactly the same signal that

Q2 What is communication channel? Explain with an example.

 Answer - Communication channel means a medium through which electrical signals can be transmitted. A communication channel (or simply channel), refers either to a physical transmission medium

Q3 What is carrier signal and a modulating signal? What are the uses

of modulation?

Answer -Modulation is the process of varying one of characteristics (either amplitude or frequency or phase) of a high-frequency periodic waveform, called the carrier signal, with a modulating

Q4 What is Guided Transmission Media? List different types of

guided media.

Answer  –

Transmission media is the physical path between the transmitter and receiver. Physical media used for the

QNO5 State and explain Nyquist theorem with mathematical

representation..

Answer - The Nyquist theorem states that “a signal must be sampled at least twice as fast as the bandwidth of the signal to accurately reconstruct the waveform” In other words, the sampling frequency should be

QNO6 What is Congestion control? How Backpressure is capable of controlling Congestion.

Answer - Congestion control is concerned with controlling traffic entry into a  network, so as to avoid congestive collapse by attempting to avoid oversubscription of any of the processing or link

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bca3040 smu bca summer 2016 (oct/nov 2016 exam) IIIrd sem assignment

Get fully solved assignment. Buy online from website

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or

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computeroperator4@gmail.com

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Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

Summer 2016, ASSIGNMENT

PROGRAM BCA (REVISED FALL 2012)

SEMESTER 3

SUBJECT CODE & NAME BCA 3040– DATA COMMUNICATION

BK ID B1644 CREDITS 4 MAXIMUM MARKS 60

Q1 What is Transmission Impairments? Briefly explain the problems challenged by Transmission lines.

ANSWER - Analog signal consist of varying a voltage with time to represent an information steam. If the transmission media were perfectly, the receiver could receive exactly the same signal that the transmitter sent. But communication lines are usually not perfect, so the receive signal is not the

Q2 Briefly explain the communication channel with an example

Answer - Communication channel means a medium through which electrical signals can be transmitted. A communication channel (or simply channel), refers either to a physical transmission medium such

Q3 What is modulation? Explain why modulation is required?

Answer -Modulation is the process of varying one of characteristics (either amplitude or frequency or

Q4 Briefly explain Guided Transmission Media and its types.

Answer  –

Transmission media is the physical path between the transmitter and receiver. Physical media used for the actual data transmission are grouped into two groups. They are:

a)     Guided

QNO5 Briefly explain Nyquist theorem with mathematical representation.

Answer - The Nyquist theorem states that “a signal must be sampled at least twice as fast as the bandwidth of the signal to accurately reconstruct the waveform” In other words, the sampling frequency

QNO6 What is Congestion control? How Backpressure is capable of controlling Congestion.

Answer - Congestion control is concerned with controlling traffic entry into a  network, so as to avoid congestive collapse by attempting to avoid oversubscription of any of the processing or link capabilities of the intermediate nodes and networks and taking resource reducing steps, such as

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we will revert you within 2-3 hour or immediate

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if urgent then call us on 08791490301, 08273413412