Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q441: The phase of a waveform describes _______.
- A: The amount of shift of the wave
- B: The amplitude of the wave
- C: The frequency of the wave
- D: The period of the wave
View Answer
A
Q442: The phase of a waveform indicates the _______ of the first cycle.
- A: Start
- B: End
- C: Duration
- D: Amplitude
View Answer
A
Q443: Fill in the blank: The phase of a wave can be expressed in _______ or radians.
- A: Degrees
- B: Amplitude
- C: Frequency
- D: Time
View Answer
A
Q444: A sine wave that is offset by 16\frac{1}{6}61​ cycle with respect to time 0 has a phase of _______.
- A: 60 degrees or π3\frac{\pi}{3}3π​ radians
- B: 30 degrees or π6\frac{\pi}{6}6π​ radians
- C: 90 degrees or π2\frac{\pi}{2}2π​ radians
- D: 180 degrees or π\piπ radians
View Answer
A
Q445: The phase of a sine wave describes _______ in relation to time 0.
- A: The shift in the wave's starting point
- B: The duration of the cycle
- C: The frequency of the wave
- D: The amplitude of the wave
View Answer
A
Q446: A phase shift of 180 degrees corresponds to a shift of _______ radians.
- A: π\piπ
- B: π2\frac{\pi}{2}2π​
- C: π3\frac{\pi}{3}3π​
- D: 2Ï€2\pi2Ï€
View Answer
A
Q447: Fill in the blank: A sine wave shifted by 180 degrees from its original position is considered to be in _______ phase.
- A: Opposite
- B: Same
- C: Quadrature
- D: Zero
View Answer
A
Q448: A wave that starts at time 0 and shifts 90 degrees will have a phase of _______.
- A: 90 degrees or π2\frac{\pi}{2}2π​ radians
- B: 45 degrees or π4\frac{\pi}{4}4π​ radians
- C: 120 degrees or 2π3\frac{2\pi}{3}32π​ radians
- D: 180 degrees or π\piπ radians
View Answer
A
Q449: A sine wave is offset by 14\frac{1}{4}41​ cycle with respect to time 0. What is its phase in degrees and radians?
- A: 90 degrees or π2\frac{\pi}{2}2π​ radians
- B: 45 degrees or π4\frac{\pi}{4}4π​ radians
- C: 180 degrees or π\piπ radians
- D: 270 degrees or 3π2\frac{3\pi}{2}23π​ radians
View Answer
A
Q450: The phase shift of a waveform is typically expressed in _______ or radians.
- A: Degrees
- B: Seconds
- C: Amplitude
- D: Frequency
View Answer
A