MCQs on Computer Networking
MCQs related to Computer Networking.


Q No.1 of 10

First layer of OSI model is______
Option 1
link layer
Option 2
physical layer

Correct
Option 3
transport layer
Option 4
network layer
Q No.2 of 10


Which of the following might be used by a company to satisfy its growing communications needs?
Option 1
front end processor
Option 2
concentrator
Option 3
controller
Option 4
multiplexer
Option 5
all of the these

Correct
Q No.3 of 10

The x.25 standard specifies a
Option 1
technique for start-stop data
Option 2
technique for dial access
Option 3
DTE/DCE interface

Correct
Option 4
None of these
Q No.4 of 10


Which of the following communication modes support two-way traffic but in only one direction at a time?
Option 1
three-quarters duplex
Option 2
simplex
Option 3
half duplex

Correct
Option 4
None of these
Q No.5 of 10


What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?
Option 1
2
Option 2
4
Option 3
5
Option 4
3

Correct
Option 5
None of these
Q No.6 of 10


In OSI network architecture, the routing is performed by
Option 1
network layer

Correct
Option 2
transport layer
Option 3
data link layer
Option 4
session layer
Option 5
none of these
Q No.7 of 10

In OSI network architecture, the dialogue control and token management are responsibility of
Option 1
session layer

Correct
Option 2
network layer
Option 3
transport layer
Option 4
data link layer
Q No.8 of 10


Which of the following performs modulation and demodulation?
Option 1
fiber optics
Option 2
modem

Correct
Option 3
satellite
Option 4
coaxial cable
Option 5
none of the these
Q No.9 of 10

The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
Option 1
demodulation
Option 2
modulation
Option 3
synchronizing
Option 4
digitising

Correct
Q No.10 of 10


How many OSI layers are covered in the X.25 standard?
Option 1
Two
Option 2
Three

Correct
Option 3
Seven
Option 4
Six
Option 5
None of these



Solved MCQs on Computer Networking II

MCQs and Quiz related to Computer Networking.


Q No.1 of 10

Which of the following does not allow multiple uses or devices to share one communication line?
Option 1
multiplexer
Option 2
doubleplexer

Correct
Option 3
concentrator
Option 4
controller
Q No.2 of 10

Which of the following signal is not standard RS-232-C signal?
Option 1
DSR
Option 2
VDR

Correct
Option 3
RTS
Option 4
CTS
Q No.3 of 10

Which of the following is an advantage to using fiber optics data transmission?
Option 1
resistance to data theft
Option 2
low noise level
Option 3


fast data transmission rate
Option 4
all of these

Correct
Q No.4 of 10

The transmission signal coding method of TI carrier is called
Option 1
NRZ
Option 2
Bipolar

Correct
Option 3
Manchester
Option 4
Binary
Q No.5 of 10

Which of the following is not a transmission medium?
Option 1
telephone lines
Option 2
coaxial cables
Option 3
microwave systems
Option 4
modem

Correct
Q No.6 of 10

Which of the following statement is incorrect?
Option 1
RTS/CTS is the way the terminal indicates ringing

Correct
Option 2
Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line
Option 3
HDLC is a standard synchronous communication protocol.
Option 4
RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data
Q No.7 of 10

Which of the following is required to communicate between two computers?
Option 1
all of above including access to transmission medium

Correct
Option 2
communications software
Option 3
protocol
Option 4
communication hardware
Q No.8 of 10

The interactive transmission of data within a time sharing system may be best suited to
Option 1
simplex lines
Option 2
half-duplex lines

Correct
Option 3
full duplex lines
Option 4
biflex-lines
Q No.9 of 10

Which of the following is considered a broad band communication channel?
Option 1
microwave circuits
Option 2
coaxial cable
Option 3
fiber optics cable
Option 4
All of these

Correct

Q No.10 of 10

Which of the following statement is incorrect?
Option 1
The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission.
Option 2
Teleprocessing combines telecommunications and DP techniques in online activities
Option 3
Half duplex line is a communication line in which data can move in two directions, but not at the same time.
Option 4
Batch processing is the prefered processing mode for telecommunication operation.

Correct



Solved MCQs on Computer Networking III
MCQs and Quiz related to Computer Networking.
Q No.1 of 10

A remote batch-processing operation in which data is solely input to a central computer would require
Option 1
simplex lines

Correct
Option 2
telegraphp line
Option 3
mixed bad channel
Option 4
all of these
Q No.2 of 10


Avalanche photodiode receivers can detect bits of transmitted data by receiving
Option 1
200 photons

Correct
Option 2
100 photons
Option 3
2000 photons
Option 4
300 photons
Q No.3 of 10

An example of a medium speed, switched communications service is
Option 1
series 1000
Option 2
DDD

Correct
Option 3
data phone 50
Option 4
All of the these
Q No.4 of 10

While transmitting odd-parity coded symbols, the number of zeros in each symbol is
Option 1
odd
Option 2
even
Option 3
All of these
Option 4
unknown

Correct
Q No.5 of 10

Data communications monitors available on the software marked include
Option 1
TOTAL
Option 2
ENVIRON/1

Correct
Option 3
BPL
Option 4
Telnet
Q No.6 of 10

An example of an analog communication method is
Option 1
microwave
Option 2
laser beam
Option 3
voice grade telephone line
Option 4
all of the these

Correct
Q No.7 of 10

Communication circuits that transmit data in both directions but not at the same time are operating in
Option 1


a half duplex mode

Correct
Option 2
a full duplex mode
Option 3
an asynchronous mode
Option 4
a simplex mode
Q No.8 of 10


A band is always equivalent to 
Option 1
a byte
Option 2
a bit
Option 3
100 bits
Option 4
none of these

Correct
Q No.9 of 10

The loss in signal power as light travels down the fiber is called
Option 1
attenuation

Correct
Option 2
progragation
Option 3
scattering
Option 4
interruption

Q No.10 of 10

In communication satellite, multiple repeaters are known as
Option 1
detector
Option 2
modulator
Option 3
transponders

Correct
Option 4
stations
 
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