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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 - C
| Q. 1 | Identify the functionalities of the various
layers in the OSI reference model
Set A
1. Data Link Layer
2. Network Layer
3. Transport Layer
4. Application layer
Set B
a. Error handling during transmission
b. Retransmitti |
| | A) | 1- b, 2 - d, 3 - a, 4 - c |
| B) | 1- b, 2 - a, 3 - c, 4 - d | | C) | 1- a, 2 - d, 3 - b, 4 - c | | D) | 1- b, 2 - c, 3 - a, 4 - d | | | | | Q. 2 | Given the distance of the obstacle from
the transmitter, d, = 20 km. And the third FZ
clearance = 40 meters. Find the distance of the
obstacle from the receiver. Given the frequency
of transmission is 4GHz |
| | A) | 14.789 km |
| B) | 11.034 km | | C) | 15.244 km | | D) | 31.64 km | | | | | Q. 3 | Match set A with set B
Set-A
a) Altitude and orbit control system
b) Telemetry, Tracking and command
c) Communication subsystem
d) Antenna subsystem
Set-B
1) Controls the antenna pointing and
communication system configurat |
| | A) | a)-2), b)-1), c)-4), d) 3) |
| B) | a)-1), b)-3), c)-2), d) 4) | | C) | a)-3), b)-2), c)-4), d) 1) | | D) | a)-2), b)-4), c)-1), 3) | | | | | Q. 4 | ___ points are not true for fiber optic
cables
a) Can be used over distance up to 2
kilometers
b) cheap and invaluable for situations, where
large amount of interference is present.
c) Fiber optic cable are made of glass fiber |
| | A) | a, b, c, d, e |
| B) | b, d, e | | C) | a, c, d | | D) | None of the above | | | | | Q. 5 | How many bits are required to achieve a
signal to quantization noise ratio of at least 40
dB? |
| | A) | 5 |
| B) | 6 | | C) | 7 | | D) | 8 | | | |
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