Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 95
Q1301:
Which technique divides the transmission time among multiple users?
A. Frequency-Division Multiplexing
B. Time-Division Multiplexing
C. Wavelength-Division Multiplexing
D. Code-Division Multiplexing
Correct Answer:
B
Chapter: 95
Q1302:
Fill in the blank: In _______ multiplexing, each connection occupies a portion of time in the link.
A. Frequency-Division
B. Time-Division
C. Space-Division
D. Code-Division
Correct Answer:
B
Chapter: 95
Q1303:
Time-Division Multiplexing (TDM) is primarily used in which type of transmission?
A. Digital
B. Analog
C. Optical
D. Wireless
Correct Answer:
A
Chapter: 95
Q1304:
What is required at the receiving end of a Time-Division Multiplexed signal?
A. Demultiplexer
B. Modulator
C. Oscillator
D. Encoder
Correct Answer:
A
Chapter: 95
Q1305:
Which of the following is NOT a type of multiplexing?
A. Time-Division Multiplexing
B. Frequency-Division Multiplexing
C. Space-Division Multiplexing
D. Packet Switching
Correct Answer:
D
Chapter: 95
Q1306:
What is the main advantage of Time-Division Multiplexing?
A. Increases bandwidth usage
B. Reduces the need for multiple transmission lines
C. Decreases data transmission rate
D. Requires separate channels for each connection
Correct Answer:
B
Chapter: 95
Q1307:
Fill in the blank: _______ is used in digital transmission to allocate time slots for multiple users.
A. Frequency-Division Multiplexing
B. Time-Division Multiplexing
C. Space-Division Multiplexing
D. Packet Switching
Correct Answer:
B
Chapter: 95
Q1308:
Which device is responsible for separating the original signals in a multiplexed system?
A. Modulator
B. Demultiplexer
C. Encoder
D. Amplifier
Correct Answer:
B
Chapter: 95
Q1309:
In TDM, each signal is assigned a unique _______.
A. Frequency
B. Time Slot
C. Amplitude
D. Phase Shift
Correct Answer:
B
Chapter: 95
Q1310:
What is the main challenge of Time-Division Multiplexing?
A. Synchronization of time slots
B. Lack of available bandwidth
C. High cost of implementation
D. Requirement of different frequencies
Correct Answer:
A
Chapter: 95
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
Correct Answer:
B
Chapter: 95
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
Correct Answer:
B
Chapter: 95
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
Correct Answer:
A
Chapter: 95
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
Correct Answer:
C
Chapter: 96
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
Correct Answer:
A
Chapter: 96
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)
Correct Answer:
B
Chapter: 96
Q1317:
Fill in the blank: _______ allows multiple connections to share a single communication channel efficiently.
A. Modulation
B. Multiplexing
C. Encoding
D. Demodulation
Correct Answer:
B
Chapter: 96
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
Correct Answer:
A
Chapter: 96
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
Correct Answer:
B
Chapter: 96
Q1320:
In TDM, each signal is assigned a unique _______.
A. Frequency
B. Time Slot
C. Amplitude
D. Phase Shift
Correct Answer:
B