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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

Q1571: Fill in the blank: ______ waves are commonly used for AM and FM broadcasting.
  • A: Microwave
  • B: Radio
  • C: Light
  • D: Infrared
View Answer
B

Q1572: Which of the following is a correct frequency range for microwaves?
  • A: 3 Hz to 3 kHz
  • B: 300 GHz to 3 THz
  • C: 1 GHz to 300 GHz
  • D: 3 kHz to 300 MHz
View Answer
C

Q1573: Which type of wave is generally used in satellite communication and radar?
  • A: Radio waves
  • B: Microwaves
  • C: Sound waves
  • D: Infrared
View Answer
B

Q1574: Radio waves have a frequency range of ______.
  • A: 1 GHz to 300 GHz
  • B: 300 MHz to 3 GHz
  • C: 3 kHz to 1 GHz
  • D: 30 GHz to 300 GHz
View Answer
C

Q1575: Fill in the blank: ______ are used in applications such as television and mobile communications.
  • A: Microwaves
  • B: Radio waves
  • C: X-rays
  • D: Gamma rays
View Answer
B

Q1576: Microwaves are primarily used in which of the following applications?
  • A: Broadcast radio
  • B: Mobile communication and radar
  • C: Power line transmission
  • D: Sound recording
View Answer
B

Q1577: Which of the following statements is true about electromagnetic waves?
  • A: Radio waves are higher in frequency than microwaves
  • B: Microwaves have lower frequencies than radio waves
  • C: Radio waves and microwaves are both electromagnetic waves
  • D: Microwaves are not used in communication
View Answer
C

Q1578: Which electromagnetic wave is used in GPS systems?
  • A: Radio waves
  • B: Microwaves
  • C: Infrared waves
  • D: X-rays
View Answer
B

Q1579: Fill in the blank: ______ waves are suitable for short-distance point-to-point communication like Bluetooth and Wi-Fi.
  • A: Radio
  • B: Microwave
  • C: Infrared
  • D: Sound
View Answer
C

Q1580: Microwaves are different from radio waves in terms of ______.
  • A: Frequency range
  • B: Propagation speed
  • C: Medium used
  • D: Color
View Answer
A

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