Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1071: Fill in the blank: FSK is a _______ modulation technique where the carrier frequency changes with the binary data.
- A: phase
- B: digital
- C: amplitude
- D: continuous
View Answer
B
Q1072: What is the primary advantage of FSK over ASK?
- A: Higher data rate
- B: Better noise immunity
- C: Lower power consumption
- D: Reduced bandwidth usage
View Answer
B
Q1073: In FSK, what happens when a binary 0 is transmitted?
- A: A low frequency is used
- B: A high frequency is used
- C: The amplitude drops
- D: The phase shifts
View Answer
A
Q1074: What is a disadvantage of Binary FSK?
- A: Higher bandwidth usage
- B: Low noise immunity
- C: Complex hardware
- D: High power consumption
View Answer
A
Q1075: Which parameter determines the bandwidth requirement in FSK?
- A: Carrier frequency
- B: Data rate
- C: Amplitude modulation
- D: Phase shift
View Answer
B
Q1076: Fill in the blank: The _______ of the modulated signal remains constant for one signal element in FSK.
- A: amplitude
- B: phase
- C: frequency
- D: noise
View Answer
A
Q1077: What type of modulation is used when the carrier frequency changes between two predefined levels?
- A: Amplitude Modulation
- B: Binary FSK
- C: Phase Modulation
- D: Quadrature Modulation
View Answer
B
Q1078: FSK is most commonly used in _______.
- A: DSL modems
- B: Audio broadcasting
- C: Wireless communication
- D: Ethernet
View Answer
C
Q1079: In Binary FSK, the bandwidth required is proportional to _______.
- A: Amplitude
- B: Phase
- C: Signal Rate
- D: Carrier Frequency
View Answer
C
Q1080: The simplest form of FSK is known as _______.
- A: Continuous Wave Modulation
- B: Binary FSK
- C: Quadrature Modulation
- D: Single Carrier Modulation
View Answer
B