Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1311: Which type of multiplexing is best suited for digital voice and data transmission?
- A: Wavelength-Division Multiplexing
- B: Time-Division Multiplexing
- C: Frequency-Division Multiplexing
- D: Space-Division Multiplexing
View Answer
B
Q1312: Fill in the blank: In TDM, the transmission medium is shared by assigning different _______ to each connection.
- A: Frequencies
- B: Time slots
- C: Signal amplitudes
- D: Wavelengths
View Answer
B
Q1313: What happens if two signals are assigned overlapping time slots in TDM?
- A: Interference occurs
- B: Data transmission speed increases
- C: Multiplexing efficiency improves
- D: Signals are automatically corrected
View Answer
A
Q1314: Which of the following is a key application of Time-Division Multiplexing?
- A: Fiber-optic communication
- B: Satellite communication
- C: Digital telephony
- D: AM radio broadcasting
View Answer
C
Q1315: What is the process that allows multiple connections to share the high bandwidth of a link?
- A: Multiplexing
- B: Switching
- C: Encoding
- D: Modulation
View Answer
A
Q1316: Which technique divides the transmission time among multiple users?
- A: Frequency-Division Multiplexing (FDM)
- B: Time-Division Multiplexing (TDM)
- C: Wavelength-Division Multiplexing (WDM)
- D: Code-Division Multiplexing (CDM)
View Answer
B
Q1317: Fill in the blank: _______ allows multiple connections to share a single communication channel efficiently.
- A: Modulation
- B: Multiplexing
- C: Encoding
- D: Demodulation
View Answer
B
Q1318: What is the main advantage of Time-Division Multiplexing?
- A: Reduces transmission cost
- B: Increases interference
- C: Requires more physical cables
- D: Uses multiple frequencies for each user
View Answer
A
Q1319: What is the primary challenge of TDM?
- A: High bandwidth requirement
- B: Synchronization of time slots
- C: High noise interference
- D: Inability to transmit digital signals
View Answer
B
Q1320: In TDM, each signal is assigned a unique _______.
- A: Frequency
- B: Time Slot
- C: Amplitude
- D: Phase Shift
View Answer
B