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ONLINE MCQ'S ON COMMUNICATION AND NETWORKING (FCCN) 2020

ONLINE MCQ'S ON COMMUNICATION AND NETWORKING (FCCN).


1.The_______________is the final block in the communication system which receives message signal and processes it.




... Answer is : C
Destination is the final block in communication system.


2.Signal Attenuation is measured in Units called as ___________.




... Answer is: B


3.The loss of strength of a signal while propagating through a medium is known as _____.




... Answer is: A
The loss of strength of a signal while propagating through a medium is called Attenuation.

4.Message Signal in its Original Frequency range is Called as______________.




... Answer is: B
Message Signal in its Original Frequency range is Called as Baseband. 


5.The entire range of _______that the EM wave can produce oscillations in termed as Electromagnetic Spectrum.




... Answer is: C


6.As Frequency increases , the Period ____________.




... Answer is: B
As Frequency is inversely proportional to period.


7.____________Signal Repeats a Pattern Over and Over Again.




... Answer is: D
As a function returning to the same value at regular intervals.


8.____________Signals can have an INFINITE number of values in a range.




... Answer is: A
Analog signals are signals that vary continuously and can take on an infinite number of values in a given range.


9.A Periodic Signal has a bandwidth of 30 HZ .The Highest frequency is 80Hz. Its Lower Frequency will be______.




... Answer is: B
BW=BW(HIGHEST)-BW(LOWEST), ie BW(LOWEST)=80-30=50Hz.


10.A Composite signal contains frequencies between 2000 to 6000 , What will be BW?




... Answer is: B
BW=BW(HIGHEST)-BW(LOWEST), ie BW=6000-2000=4000. 


11.If a computer on the network shares resources for others to use , it is called _________.




... Answer is: A

12.ISO Stands for_________________________.




... Answer is: A

13.The data link layer divides the stream of bits received from the network layer into manageable data units called ______.




... Answer is: C

14.Satellite has several devices that accept a signal with specified frequency range and rebroadcast it over different frequencies.Those Devices are Known as ________________.




... Answer is: C 
 

15.As Per Nyquist Criteria , the Sampling rate is ______________.




... Answer is: A

16.Message signal in its original frequency range is called as ____.




... Answer is: B

17.The modulated signal is the _______ signal.




... Answer is: A

18.Transmitting the video signal from your camera to your 'TV using a wire represents a _________ communication.




... Answer is: D

19.Which of the following is suitable only for long distance communication?




... Answer is: C

20.The process of shifting the _________ to passband range for transmission is known as modulation.




... Answer is: C


21.The signal which dictates regulation is termed. As ______ signal.




... Answer is: A

22.Wavelength is usually represented by the letter _____.




... Answer is: B


23.What is range of audio frequency?




... Answer is: A


24.Before data can be transmitted, they must be transformed to__________________.




... Answer is: B


25.The completion of one full pattern is called a_______.




... Answer is: A


26.A periodic signal completes one cycle in 0.001s.? What is the frequency.




... Answer is: C
As period is inversely proportional to frequency, ie F=1/T F=1/0.001 =1 kHz.


27.What happens when a sine wave with a phase of 00 starts at time 0 with a zero amplitude?




... Answer is: A
As in sine wave amplitude increases from 0 to 90 degree.


28.The range of frequencies contained in a composite signal is its _____.




... Answer is: B

29.Instead of referring to digital signals as having a period and frequency when measuring a signal's bandwidth, one should refer to ______.




... Answer is: C


30.Set of rules that govern communication is called____.




... Answer is: D
A protocol is a set of rules and guidelines for communicating data.

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