Data Communication and Networking MCQs offer a valuable resource to test and enhance your understanding of the intricate world of data transmission, network protocols, and communication technologies. Whether you’re a student preparing for exams or a professional aiming to strengthen your knowledge, these multiple-choice questions with Answers cover a wide spectrum of topics, including network architecture, protocols, and security. These MCQs will help students in university exams,competitive exams and interviews preparation.

Section-1

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

view hide answers

1. The OSI model consists of ______ layers.

  • 3
  • 5
  • 7
  • 8

2. The physical layer is concerned with the transmission of ______ over the physical medium.

  • programs
  • dialogs
  • protocols
  • bits

3. As a data packet moves from the lower to the upper layers, headers are _____

  • added
  • subtracted
  • rearranged
  • modified

4. Which layer functions as a liaison between user support layers and network support layers?

  • Physical
  • Network
  • Transport
  • Session

5. When data is transmitted from device A to device B, the header from A’s layer 5 is read by B’s ____________ layer.

  • physical
  • network
  • transport
  • session

6. Demodulation is the process of _________

  • sending a file from one computer to another computer.
  • converting digital signals to analog signals
  • converting analog signals to digital signals
  • echoing every character that is received

7. Many low -speed channels are interwoven into one high- speed transmission by a __________

  • time division multiplexer
  • frequency division multiplexer
  • code division multiplexer
  • repeaters

8. CRC stands for

  • cyclic redundancy check
  • code repeat check
  • code redundancy check
  • cyclic repeat check

9. To connect a computer with a device in the same room user will likely to use ___________

  • coaxial cable
  • ground station
  • dedicated line
  • fibre optic cable

10. The slowest transmission speeds are those of ________

  • twisted pair
  • coaxial cable.
  • microwaves
  • fibre optic cables.

Section-2

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

view hide answers

1. In the domain name chal.atc.fhda.edu _______ is the most specific label.

  • chal
  • atc
  • edu
  • fhda

2. In the domain name chal.atc.fhda.edu ________ is the least specific label.

  • chal
  • atc
  • edu
  • fhda

3. Identify the Odd term among the following group.

  • Optical Fiber
  • Twisted Pair.
  • Coaxial Cable.
  • Microwaves

4. Which is not an example for analog communication __________ .

  • microwave
  • laser beam
  • voice grade telephone line
  • Light Wave

5. Which one of the following is a transport layer protocol used in internet?

  • TCP
  • UDP
  • both (a) and (b)
  • none of the above

6. Which among the following is not a guided transmission media?

  • Optical Fiber
  • Twisted Pair
  • Coaxial Cable
  • Microwaves

7. A sub division of main storage created by operational software is referred to as ________

  • compartment
  • time-shared program
  • divided core
  • partition

8. An example of a medium- speed, switched communications service is _________

  • Series 1000
  • Dataphone 50
  • DDD
  • Default

9. In address-to-name resolution the _______ domain is used.

  • inverse
  • generic
  • country
  • reverse

10. Which of the following is an advantage to using fiber optics data transmission?

  • Resistance to data theft
  • Fast data transmission rate
  • Low noise level
  • Few transmission errors
Share with : Share on Linkedin Share on Twitter Share on WhatsApp Share on Facebook