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Data Communication
1. Write short notes on:
a. Sky wave propagationb. Line of sight propagation
2. List and describe the different types of errors that occur during data transmission.
3. What is the concept of multiplexing. Explain about Frequency-division multiplexing.
4. Illustrate Code-Division Multiple Access (CDMA).
5. Define topology? Explain the types of LAN topologies.
6. Briefly write short notes on IEEE 802.1Q VLAN standard.
Q. Give the classification of Oscillators? Depending on the type of the output waveform, oscillators are classified as sinusoidal (or harmonic) oscillators and relaxation osci
Q. What are the features of clamping circuits? The clamping circuit does not change the peak to peak or r.m.s value of the waveform .Thus the input waveform and clamped output
Explain n - Type semiconductor. n - Type semiconductor:- (i) If small amount of pentavalent impurity is added with, to a pure semiconductor giving a large number of free
implement 16x1 using 2x1 mux
Q. A charge variation with time is given in Figure. Draw the corresponding current variation with time.
Q. What do you understand by common control? In some switching systems, control subsystem may be an integral part of switching network itself. Such system iscalled direct contr
What are the signals used in input control signal & output control signal? Input control signal STB (Strobe input) IBF (Input buffer full) INTR(Interrupt request) Ou
Define Flash Analog to Digital Converters? Parallel flash ADCs transform the analog input voltage faster as compared to other types of ADCs. They compare the voltage in parall
A 6 V / 2.5 mA relay is connected in the output stage of a transistor. The coil is made of aluminium having α = 0.004. The resistance of the coil is 600 ? at 32 o C. Calculate th
Boost Converter The boost converter has its output voltage always greater than input voltage like a buck converter boost converter has two modes.
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