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Computer Networks
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Course Name
BSc IT (Bachelor of Science in Information Technology)
Subject Code BT0072 (Computer Networks )
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PART - A
PART - B
PART - C
Subject : Computer Networks
BT0072 : PART - B
| Q. 1 | Advantage of SSB is are
a) Reduction of interference to other systems
b) Freedom from intermodulation due to multipath
signals.
c) Economy in high-tension power consumption |
| | A) | a, b |
| B) | b, c | | C) | a, c | | D) | a, b, c | | | | | Q. 2 | The process of detecting the signal by
multiplying the received signal by a locally
generated or recovered carrier that is
synchronous with that of the transmitted carrier
is called |
| | A) | Binary phase shift key demodulation |
| B) | Synchronous demodulation | | C) | Mux demodulator | | D) | Product demodulation | | | | | Q. 3 | The process by which an already
modulated signal is modulated second time in
such a way as to produce a waveform which
interferes in a barely noticeable way with any
other signal operation in the same frequency
band is known as |
| | A) | Matched Filtering |
| B) | Intersymbol interference | | C) | Spread Spectrum | | D) | Frequency Hopping | | | | | Q. 4 | In a photodiode the efficiency at 1500nm
is 0.5. If P of optical power falls on the diode,
the primary photo current is ___ amperes |
| | A) | 0.6P |
| B) | 240pY | | C) | 0.32Pm | | D) | 360Y | | | | | Q. 5 | State true or false
a) PPP does not provide any form of
authentication
B) SLIP handles error detection, supports
multiple protocols and permits authentication.
C) Most of Internet service providers support
both SLIP and PPP. |
| | A) | a-T, b-T, c-T |
| B) | a-F, b-F, c-F | | C) | a-F, b-F, c-T | | D) | a-T, b-T, c-F | | | |
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