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Computer Networks
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Course Name
BCA (Bachelor of Computer Application)
Subject Code BC0048 (Computer Networks)
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PART - A
PART - B
PART - C
Subject : Computer Networks
BC0048 : PART - C
| Q. 1 | Match the following
Set A
1. Serial Backbone
2. Distributed Backbone
3. Collapsed Backbone
4. Parallel Backbone
Set B
i. Known as Daisy Chaining
ii. Can be built by installing a backbone hub in a
central place
iii. |
| | A) | 1 – i, 2 – iii, 3 – ii, 4 – iv |
| B) | 1 – i, 2 – iv, 3 – ii, 4 – iii | | C) | 1 – i, 2 – ii, 3 – iii, 4 – iv | | D) | 1 – i, 2 – iii, 3 – iv, 4 – ii | | | | | Q. 2 | Pick out the wrong characteristics of
asynchronous transmission
1. Transmitting and receiving clocks are
independent of each other
2. Transmitting and receiving clocks are
dependent of each other
3. Two ends of the (source and dest |
| | A) | 1, 4 |
| B) | 2, 4 | | C) | 2, 3 | | D) | 1, 3 | | | | | Q. 3 | Arrange the OSI layers in the correct order
from layer 1 to layer 7
i. Physical
ii. Application
iii. Network
iv. Transport
v. Session
vi. Data Link
vii. Presentation |
| | A) | i, iii, iv, ii, v, vii, vi |
| B) | i, iv, iii, iv, v, vii, ii | | C) | ii, vii, v, iii, iv, vii, I | | D) | ii, iii, iv, v, vii, vi, I | | | | | Q. 4 | When a data frame reaches router from
network – arrange the following sequence of
events in correct order
1. Router passes the data up to the network
layer where it examines the destination IP
address
2. Router strips off the data |
| | A) | 1, 2, 3, 4 |
| B) | 2, 1, 3, 4 | | C) | 3, 1, 2, 4 | | D) | 3, 2, 1, 4 | | | | | Q. 5 | Match the following
Set A
1. Pure Aloha
2. Slotted allow
3. 1 – persistent CSMA
4. Non–persistent CSMA
Set B
i. User transmit whenever they have data to be
sent
ii. When a station has to data to send it first
listen |
| | A) | 1 – i, 2 – ii, 3 – iii, 4 – iv |
| B) | 1 – i, 2 – iii, 3 – ii, 4 – iv | | C) | 1 – i, 2 – ii, 3 – iii, 4 – iii | | D) | 1 – ii, 2 – i, 3 – iv, 4 – iv | | | |
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