Digital Communication MCQs | MCQs on Digital Communication (2024)

Digital communication is the communication that is transferred through signals from digital devices. It can send any type of information digitally. E.g., email, texting, video conferencing, social media, television, digital radio, etc.

The importance of digital communication are

  • It can build better employee engagement
  • Amplify any content and makes it reachable to a vast number of people
  • Allows us to access measurable results

It can be much more helpful. It can eliminate the time required to face to face interactions. Also, AI, chatbots, and automation allow customers to reach out to oraganisations conveniently.

MCQs on Digital Communication

Solve Digital Communication Multiple-Choice Questions to prepare better for GATE. Learn more about Digital Communication and Digital Communication MCQs by checking notes, mock tests, and previous years’ question papers. Gauge the pattern of MCQs on Digital Communication by solving the ones that we have compiled below for your practice:

Digital Communication Multiple-Choice Questions

1. The process of conversion of data along with its formatting is called:

a. Modulation

b. Formatting

c. Amplifying

d. Source Coding

Answer: (d) Source Coding

2. In the case of down-conversion, the multiplication with cosine wave would be followed by which of these filters?

a. Bandstop

b. Low pass

c. High pass

d. Bandpass

Answer: (b) Low pass

3. Which of these values of μ would correspond to the linear amplification?

a. =0

b. =1

c. >0

d. <0

Answer: (a) =0

4. From a digital filter, we would get an output pulse as _______ of our current pulse and previous pulse.

a. Ratio

b. Product

c. Summation

d. Difference

Answer: (c) Summation

5. The noise variance for AWGN is:

a. N0/2

b. N0

c. N0/4

d. 2N0

Answer: (a) N0/2

6. A bit stream would be portioned into an even stream and an odd stream in which of these systems?

a. FSK

b. QPSK

c. MSK

d. BPSK

Answer: (b) QPSK

7. How many transitions can we make at every bit of time?

a. Half

b. Three

c. Two

d. One

Answer: (c) Two

8. The Ls path loss depends on:

a. Effective area

b. Signal power

c. Antenna size

d. Wavelength

Answer: (d) Wavelength

9. Between two users of any given ideal TDM system, the cross-correlation present is:

a. 0

b. 1

c. -1

d. Infinity

Answer: (a) 0

10. A cycle slip would occur whenever the original phase error’s magnitude exceeds:

a. π2 radians

b. π radians

c. 2π radians

d. π/2 radians

Answer: (c) 2π radians

11. In the case of CDMA, ______ frequency reuse is totally possible.

a. 90%

b. 100%

c. 50%

d. No

Answer: (b) 100%

12. An Etherbnet’s maximum packet size is:

a. 1256 bytes

b. 1426 bytes

c. 1626 bytes

d. 1526 bytes

Answer: (d) 1526 bytes

13. The three ciphers can easily operate ______ bit blocks of plaintext as well as cipher text.

a. 64

b. 128

c. 156

d. 256

Answer: (a) 64

14. The total key size allowed in PGP is:

a. 1024-4056

b. 1024-4096

c. 1024-2048

d. 1024-1056

Answer: (b) 1024-4096

15. _______ fading occurs if the coherence bandwidth happens to be smaller than that of the bandwidth of the given signal.

a. Time selective

b. Fast fading

c. Frequency selective

d. Flat

Answer: (c) Frequency selective

16. Which of these tells us about a low-level transmission and also framing?

a. X series

b. V series

c. Q series

d. G series

Answer: (d) G series

17. __________ is the unit of average mutual information.

a. Bytes per symbol

b. Bits per symbol

c. Bytes

d. Bits

Answer: (d) Bits

18. The processing gain is given as:

a. R/Wss

b. R/2Wss

c. Wss/R

d. Wss/2R

Answer: (c) Wss/R

19. ____________ is a type of noise that would interfere much with the high frequency transmission.

a. Shot

b. Transit time

c. Flicker

d. White

Answer: (b) Transit time

20. __________ is a mechanism used to break down the problem.

a. Abstraction

b. Entity sharing

c. Dividing

d. Layering

Answer: (a) Abstraction

Keep learning and stay tuned to get the latest updates on the GATE Exam along with GATE MCQs, GATE Eligibility Criteria, GATE Syllabus for CSE (Computer Science Engineering), GATE Notes for CSE, GATE CSE Question Paper, and more.

Digital Communication MCQs | MCQs on Digital Communication (2024)

FAQs

What are the examples of digital communication Mcq? ›

Digital Communication MCQs. Digital communication is the communication that is transferred through signals from digital devices. It can send any type of information digitally. E.g., email, texting, video conferencing, social media, television, digital radio, etc.

What is digital communication PDF? ›

Digital communication is the physical transfer of data over Point-To-Point or Point-To-Multipoint communication channel. It is transfer of discrete messages. Digital communication plays a vital role in today's electronic world. In digital communication the data transfer rate depends upon it'scharacterictics.

What conditions must be fulfilled in a good digital communication system Mcq? ›

What conditions must be fulfilled in a good digital communication system? Explanation: Some of the conditions which must be satisfied in a digital communication system are high data rate, high fidelity, low bandwidth, low transmit power and low transmitter and receiver complexity.

What are the 3 most popular forms of digital communication? ›

Of all the various different forms of digital communication, the three that are most popular are generally considered to be, in no particular order: texts, social media, and video chat.

What are the basics of digital communication? ›

The digital communication system uses an encoder and decoder to convert the information into bits and vice-versa. The digital signals are represented by a square wave. The analog signals are represented by a sine wave or cosine wave. Audio signals, speech signals, sound waves, pressure waves, video signals, etc.

What is the basic concept of digital communication? ›

What is digital communication? Digital communication definition: This concept, also known as data communication or data transmission, is the transfer of data or information using digital signals over a point-to-point (P2P) channel. A P2P connection is a mode of communication between two communication endpoints.

How many types of digital communication are there? ›

There are many digital communication types, commonly called digital communication channels. These include email, phone calls, video conferencing, and many types of instant messaging like SMS and web chats. Even blogs, podcasts, and videos are considered forms of digital communication.

What are the disadvantages of digital communication Mcq? ›

What are the disadvantages of digital communication? Explanation: Digital communication needs more bandwidth, has higher complexity and little performance degradation occurs during analog to digital conversion and vice versa.

Which software are used in digital communication? ›

Which software are used in digital communication? Ans.: We use computers for email, chatting, FTP, telnet and video conferencing which means Digital communication. The software used are Skype, Whatsapp, Gmail, Facebook, Instagram etc.

What is digital communication tools? ›

It includes email, text messaging, instant messaging, video conferencing, social media, and more. Using digital communication tools in the workplace can increase productivity, enhance collaboration, and improve your customer experience. These tools also make it easier to organize and retain information.

What is jamming in digital communication? ›

While “interference” generally describes unintentional forms of disruption during wireless communications, “jamming” describes the deliberate interference with or blocking of such communications.

What are the examples of digital communication? ›

These include email, phone calls, video conferencing, and many types of instant messaging like SMS and web chats. Even blogs, podcasts, and videos are considered forms of digital communication.

What is digital communication and examples? ›

So, what is digital communication? Digital communication is the use of online tools like email, social media messaging and texting to reach other individuals or a specific audience in order to share a message.

Which of these is an example of digital communication? ›

It includes email, text messaging, instant messaging, video conferencing, social media, and more. Using digital communication tools in the workplace can increase productivity, enhance collaboration, and improve your customer experience.

What is an example of a digital communication method? ›

c) Social media platforms: Facebook, Twitter, Instagram, and LinkedIn connect people globally, enabling them to share updates, engage in discussions, and build networks. d) Email: It remains a widely used example of Digital Communication method, providing a formal and reliable means of exchanging messages and files.

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