Data Communication MCQs Quiz

Data Communications Quiz. This is the 2nd post for ICS Part-I | 1st Year Computer Science Chapter No.3. Data communication MCQs with answers are important for the final exams. Data communication and networking solved MCQs are also for university entry test | ECAT.

 
We tried our best to make the important data communication and networking exam questions and answers. This post covers the topics i.e., data communication and networking quiz, data communication modes (simplex, half-duplex, and full-duplex), types of data transmission (serial and parallel), synchronous & asynchronous transmission, baseband & broadband, communication media (guided and unguided), and modem.

 

            

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➤ Data Communication - MCQs Quiz Set-I 
➤ Data Communication - Short Questions
➤ Information Networks - Short Questions
➤ Information Networks - MCQs

Chapter 3: Data Communications

MCQs | Quiz - 2

 

1. The fiber optics works on the principal of?
   1.   refraction
   2.   total internal reflection
   3.   refraction + tot internal reflection
   4.   none of these
2. The movement of encoded information by means of electrical transmission system from one device to another device is known as?
   1.   data processing
   2.   data communication
   3.   data travelling
   4.   data passing
3. The process of converting digital signal into analog signal is known as?
   1.   modulation
   2.   demodulation
   3.   conversion
   4.   none of these
4. The term bandwidth refers to measure of ____ communication channel?
   1.   encryption rate
   2.   transmission rate
   3.   encoding rate
   4.   none of these
5. The term noise refers to?
   1.   distortion in signal
   2.   amplification in signal
   3.   electrical disturbance in signal
   4.   none of these
6. The twists in twisted pair cable help us to minimize?
   1.   signal strength
   2.   interference
   3.   amplification
   4.   signal quality
7. The type of communication between computer and printer is an example of ___ communication?
   1.   parallel
   2.   serial
   3.   synchronous
   4.   serial + synchronous
8. The type of communication which involves concurrent flow of data through separate communication lines?
   1.   parallel
   2.   Serial
   3.   synchronous
   4.   serial + synchronous
9. To transmit large volume of data at once, which of the given medial will be best choice?
   1.   twisted pair
   2.   microwave
   3.   satellite
   4.   coaxial
10. Which of the followings encoding schemes was developed by ANSI?
    1.   BCD
    2.   EBCDIC
    3.   ASCII
    4.   Unicode
11. Which of the followings factor remains same when data enters in fiber optic cable?
    1.   speed
    2.   wavelength
    3.   frequency
    4.   none of these
12. Which of followings is a mode of communication?
    1.   simplex
    2.   asynchronous
    3.   parallel
    4.   simplex + parallel
13. Which of the followings is an encoding scheme?
    1.   BCD
    2.   Unicode
    3.   ASCII
    4.   all of these
14. Which of the followings is not an example of guided media?
    1.   twisted pair
    2.   optical fiber
    3.   space
    4.   coaxial
15. Which of the followings type of serial communication is suitable for transmitting a large block of data?
    1.   synchronous
    2.   asynchronous
    3.   parallel
    4.   all of these
16. Which type of modem does not transmits data signals in air rather than cables?
    1.   internal
    2.   external
    3.   wireless
    4.   internal + external
17. Within a given time period, height of a signal at a any point is called?
    1.   amplitude
    2.   time period
    3.   wavelength
    4.   frequency