Q1 Define the three types of data flow. Q2 What are the t.pdf

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Q1: Define the three types of data flow. Q2: What are the two principles of Protocol Layering? Q3: A sine wave is offset 1/4 cycle with respect to time 0. What is its phase in degrees and radians? Q4: List three properties for Infrared waves. Solution : 4) Infrared (IR) waves are : - electromagnetic in nature with longer wavelengths than visible light - wavelength is from 0.74 micrometres (µm) to 300 µm. - frequency range is from 1 to 400 THz IR is thermal radiation emitted by objects near room temperature. 3) phase in degree : 1 complete cycle = 360 ° Then 1/4th cycle =1/4*360= 90° Phase in radians : 1° =2/360 radians Then 90° = 90*2/360 = /2 rad = 1.57 rad 1) Simplex:All the data flow is unidirectional from transmitter to receiver. Duplex communication is two way in that we have two types: Half-duplex: communication may be likened to two way Either can may be used to transmit or receive, but not at the same time Fullduplex:Full-duplex communication is more like a true telephone, where two people can talk at the same time and hear one another simultaneously. 1) When communication is simple we may need only one protocol. When the communication is Complex we need a protocol at each layer which is called protocol layering We need to understand two simple principles for that a) The first principle dictates that if we want bidirectional communication, we need to make each layer so that it is able to perform two opposite tasks, one in each direction. b) The second principle that we need to follow in protocol layering is that the two objects under each layer at both sides should be identical..

Education

When communication is simple we may need only one protocol. When the communication is
Complex we need a protocol at each layer which is called protocol layering
We need to understand two simple principles for that
a) The first principle dictates that if we want
bidirectional communication, we need to make each
layer so that it is able to perform two opposite tasks,
one in each direction.
b) The second principle that we need to follow in
protocol layering is that the two objects under each
layer at both sides should be identical.

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What is frequency? What is wavelength? Calculate the frequency of signals with wavelengths of 40 m, 5 m, and 8 cm. A commonly used frequency range is 902 to 928 MHz. Compute the bandwidth of this frequency range? Classify the following applications of electronic communications as simplex (one-way) or duplex (two-way). [Research Question] Solution Answer : 1.What is frequency ? Answer : 1.The number of cycles per unit of time is called frequency. 2.Frequency is measured in the Hertz units(Hz) 3.Frequency related the number of waves that pass a fixed place in a given amount of time. .............. 2.What is Wavelength ? Answer : 1.Wavelength is the Distance Between the identical points of two consecutive waves. 2.It represented by Greek letter (lambda) 3.Usually it is measured in meters. 4. =v/f where v=speed & f=frequency .....................

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For 12 pages randomly selected from War and Peace by Leo Tolstoy, the data set lists the mean number of words per sentence, the mean number of characters per word. Words/sentence Characters/word 20.6 4.3 28.0 4.5 12.0 4.5 11.5 4.5 17.4 4.5 19.7 4.8 20.3 4.3 17.8 4.2 22.1 4.7 31.4 4.3 18.3 4.4 11.7 4.5 1. ( 15 points) Prepare a frequency distribution of words/sentence with a class width of 3 words and another with class width of 4 words. Words/sentence Characters/word 20.6 4.3 28.0 4.5 12.0 4.5 11.5 4.5 17.4 4.5 19.7 4.8 20.3 4.3 17.8 4.2 22.1 4.7 31.4 4.3 18.3 4.4 11.7 4.5 Solution Words/sentence cumulative midpoint width frequency percent frequency percent 11.5-14.4 13.0 3.0 3 25.0 3 25.0 14.5-17.4 16.0 3.0 1 8.3 4 33.3 17.5-20.4 19.0 3.0 4 33.3 8 66.7 20.5-23.4 22.0 3.0 2 16.7 10 83.3 23.5-26.4 25.0 3.0 0 0.0 10 83.3 26.5-29.4 28.0 3.0 1 8.3 11 91.7 29.5-32.4 31.0 3.0 1 8.3 12 100.0 12 100.0 Words/sentence cumulative midpoint width frequency percent frequency percent 11.5-15.4 13.5 4.0 3 25.0 3 25.0 15.5-19.4 17.5 4.0 3 25.0 6 50.0 19.5-23.4 21.5 4.0 4 33.3 10 83.3 23.5-27.4 25.5 4.0 0 0.0 10 83.3 27.5-31.4 29.5 4.0 2 16.7 12 100.0 12 100.0 Words/sentence cumulative midpoint width frequency percent frequency percent 11.5-14.4 13.0 3.0 3 25.0 3 25.0 14.5-17.4 16.0 3.0 1 8.3 4 33.3 17.5-20.4 19.0 3.0 4 33.3 8 66.7 20.5-23.4 22.0 3.0 2 16.7 10 83.3 23.5-26.4 25.0 3.0 0 0.0 10 83.3 26.5-29.4 28.0 3.0 1 8.3 11 91.7 29.5-32.4 31.0 3.0 1 8.3 12 100.0 12 100.0.

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An enzyme that has lost its shape a. is denatured and no longer func.pdf

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