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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 - A
| Q. 1 | Bell 103 answer modem ___ frequency to
transmit binary 0. |
| | A) | 1070Hz |
| B) | 2025Hz | | C) | 2225Hz | | D) | 1270Hz | | | | | Q. 2 | A 56kbps can transfer ___ bits in 10ms. |
| | A) | 560 |
| B) | 5.6 | | C) | 5600 | | D) | 0.56 | | | | | Q. 3 | In _____ topology all the computer nodes
are connected to a single main cable and hence
connected to other computers |
| | A) | Mesh |
| B) | Star | | C) | Bus | | D) | Ring | | | | | Q. 4 | _____ is in general used for Frequency
Division Multiplexing with 12 to 600 or more
channels and for TV transmission over
microwave system |
| | A) | FM |
| B) | MW | | C) | SW | | D) | MNW | | | | | Q. 5 | Which Layer of OSI Reference model is called
as the Internet layer in TCP/IP model ? |
| | A) | Transport Layer |
| B) | Network Layer | | C) | Data Link Layer | | D) | Session Layer | | | | | Q. 6 | PCM is used in ___ |
| | A) | Telephony |
| B) | Space communication | | C) | Both A) and B) | | D) | None of the above | | | | | Q. 7 | OSI reference model has ___ number of
layers. |
| | A) | 8 |
| B) | 4 | | C) | 7 | | D) | 3 | | | | | Q. 8 | ___ cable is the highest, most expensive
grade, meant for 100Mpbs networks. |
| | A) | Level 3 UTP |
| B) | Level 4 UTP | | C) | Level 1 UTP | | D) | Level 5 UTP | | | | | Q. 9 | Drawback of geostationary satellite is |
| | A) | 6 satellites are required to cover the entire
globe |
| B) | Regions of earth above 80 latitude cannot be
covered. | | C) | Tracking of antennas is very difficult | | D) | All of the above | | | | | Q. 10 | Optical fiber uses ___ principle to transfers
information |
| | A) | Total internal transmission |
| B) | Total internal reflection | | C) | Partial refraction | | D) | Partial external reflection | | | |
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