Wednesday, 28 March 2018

BIT205 – Basics of Data Communication


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Drive fall – 2017
PROGRAM Bachelor of Science in Information Technology
SEMESTER II
SUBJECT CODE & NAME BIT205 – Basics of Data Communication

Assignment Set -1
1 What are the criteria for a Data Communication Network?

Answer: Communication Network is set of equipment or say facilities that provide a communication services like to transfer of data between two or more nodes located in any of its geographical point. Example of such networks includes computer networks (LAN/WAN), telephone networks,


2 Explain the TCP/IP Protocol Architecture.

Answer: Two protocol architectures have served as the basis for the development of interoperable communications standards: the TCP/IP protocol suite and the Open Systems Interconnection (OSI)



3 Write short notes on Delta Modulation (DM).

Answer: Delta Modulation (DM)
In delta modulation, an analog input is approximated by a staircase function that moves up or down by one quantization level ᵟ at each sampling interval (TS). An example is shown in figure below, where the staircase



Assignment Set -2

1 What are communication model?

Answer: Data communication model:
The figure below shows the simple



2 What is the need for Protocol Architecture?

Answer: The architecture of the TCP / IP protocol is the result of protocol development and experimental packet-switched


3 Write short notes on Pulse Code Modulation (PCM).

Answer: Pulse Code Modulation
Pulse code modulation (PCM) is based on the sampling theorem.

Sampling Theorem: It states that “If a signal f(t) is sampled at regular intervals of time and at a rate higher than twice the highest signal frequency, then the samples contain all the information of the original signa



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