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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 | Calculate the free space path Loss of a 100
km LOS link if operating frequency is 10GHz |
| | A) | 60.4418dB |
| B) | 110.034dB | | C) | 152.4418dB | | D) | 96.72dB | | | | | Q. 2 | Space diversity is observed when |
| | A) | Two or more carriers of the same frequency,
are transmitted via physically separated
paths in space |
| B) | Two or more carriers of different frequencies
are transmitted at different physical levels in
space | | C) | Single carrier of different frequencies are
transmitted at different physical levels in space | | D) | Two or more carriers of the same frequency
are transmitted at the same physical levels in
space | | | | | Q. 3 | Which of the following points are false
regarding satellite link frequencies?
a) Commonly used uplink frequency is 4GHz
b) Uplink frequency is always chosen to be
greater than down link frequency
c) Same frequencies are used for uplink |
| | A) | a, b, c |
| B) | a, b | | C) | b, c | | D) | None of the above | | | | | Q. 4 | Distance of the obstacle from the
transmitter is 35km and from the receiver is
45km, measured along the LOS. If the
frequency of transmission is 3GHz, necessary
clearance for the second FZ is ___ |
| | A) | 34.64m |
| B) | 11.034m | | C) | 62.74m | | D) | 44.36m | | | | | Q. 5 | Which of the following definition regarding
services and protocol is correct?
a) Service is a set of operations that a layer
provides to the layer above it.
b) Protocol is a set of rules governing the
format and meaning of the frames, |
| | A) | a-T, b-T |
| B) | a-F, b-F | | C) | a-T, b-F | | D) | a-F, b-T | | | |
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