Q. 1. Suppose you
have been asked to give a proposal of a Local Area Network for a company which
requires easy reconfiguring, efficient in speed and
economical in cost network. Considering these three factors, which
guided media you will prefer for this type of network? Give three good reasons
to support your answer.
(2 Marks for
suggestion/name of media and 3 marks for three reasons) [2+3 = 5]
Q. 2. Analog
signals are considered more prone to Noise as compared to digital signals.
Suggest a proper method or technique with its complete steps for a
telecommunication company which wants to convert its analog signals in digital
signal to avoid from noise.
Note: just name the technique and its steps, detail is
not required. [5 Marks]
Q. 3. In Data Communication, situations exist where
we need to change the Digital Signals into Analog Signals. Select the technique(s) which is/are used by
modems for this purpose. Choose all that apply. [10 Marks]
1.
B8ZS
2.
Quantization Amplitude Modulation
3.
Amplitude Shift Keying
4.
Frequency Shift Keying
5.
Frequency Modulation
6.
Frequency Reducing Key
7.
Frequency Division Multiplexing
8.
Phase Shift Keying
9.
Phase Modulation
10.
Quadrature Amplitude Modulation
11.
Manchester Encoding Scheme
12.
4 PSK
