Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 97
Q1341:
In Synchronous TDM, if a user has no data to send, its allocated time slot _______.
A. Is skipped
B. Remains unused
C. Is used by another device
D. Is merged with the next slot
Correct Answer:
B
Chapter: 97
Q1342:
Which of the following networks commonly use Synchronous TDM?
A. Wireless LAN
B. Fiber-optic networks (SONET/SDH)
C. Bluetooth
D. Ad hoc networks
Correct Answer:
B
Chapter: 97
Q1343:
Fill in the blank: The number of time slots in Synchronous TDM depends on _______.
A. Number of input signals
B. Data transmission speed
C. Signal strength
D. Network latency
Correct Answer:
A
Chapter: 97
Q1344:
What type of systems benefit the most from Synchronous TDM?
A. Systems with variable data transmission
B. Systems that require consistent time slots
C. Systems with irregular data transmission
D. Systems that prioritize on-demand bandwidth allocation
Correct Answer:
B
Chapter: 97
Q1345:
What is a key limitation of Synchronous TDM?
A. High latency
B. Complex hardware requirements
C. Wastage of bandwidth
D. Requires separate channels for each signal
Correct Answer:
C
Chapter: 98
Q1346:
What is the main characteristic of Statistical Time-Division Multiplexing (TDM)?
A. Fixed time slots
B. Dynamic time slot allocation
C. Uses different frequencies for each signal
D. Compresses data before transmission
Correct Answer:
B
Chapter: 98
Q1347:
In Statistical TDM, time slots are allocated based on _______.
A. A fixed schedule
B. The demand for data transmission
C. The number of users
D. The signal strength
Correct Answer:
B
Chapter: 98
Q1348:
Fill in the blank: Unlike Synchronous TDM, Statistical TDM assigns time slots _______.
A. Based on fixed intervals
B. Dynamically based on active users
C. Only to the first device in a network
D. Using a pre-defined sequence
Correct Answer:
B
Chapter: 98
Q1349:
Which of the following is a major advantage of Statistical TDM?
A. Higher bandwidth efficiency
B. No need for synchronization
C. No risk of data loss
D. Faster signal transmission
Correct Answer:
A
Chapter: 98
Q1350:
Statistical TDM is also known as _______.
A. Asynchronous TDM
B. Frequency-Division Multiplexing
C. Synchronous TDM
D. Circuit Switching
Correct Answer:
A
Chapter: 98
Q1351:
Fill in the blank: In Statistical TDM, if a device has no data to send, its time slot _______.
A. Remains unused
B. Is dynamically assigned to another device
C. Is lost
D. Causes transmission delay
Correct Answer:
B
Chapter: 98
Q1352:
Which of the following best describes Statistical TDM?
A. Time slots are pre-assigned to each user
B. Bandwidth is divided into fixed slots
C. Time slots are assigned as needed
D. Multiple users transmit at the same time without scheduling
Correct Answer:
C
Chapter: 98
Q1353:
What happens when more users request transmission in Statistical TDM than available slots?
A. Data is lost
B. Network performance improves
C. Some users must wait for the next cycle
D. Additional bandwidth is allocated
Correct Answer:
C
Chapter: 98
Q1354:
Fill in the blank: Statistical TDM uses a _______ to manage dynamic time slot allocation.
A. Multiplexer
B. Router
C. Switch
D. Firewall
Correct Answer:
A
Chapter: 98
Q1355:
Which of the following network types commonly use Statistical TDM?
A. Fiber-optic networks
B. Wireless LAN
C. Circuit-switched networks
D. Packet-switched networks
Correct Answer:
D
Chapter: 98
Q1356:
What is the key difference between Statistical TDM and Synchronous TDM?
A. Statistical TDM assigns fixed time slots
B. Synchronous TDM is more efficient
C. Statistical TDM dynamically assigns time slots
D. Statistical TDM wastes bandwidth
Correct Answer:
C
Chapter: 98
Q1357:
Which device is responsible for reassigning time slots in Statistical TDM?
A. Demultiplexer
B. Multiplexer
C. Modem
D. Hub
Correct Answer:
B
Chapter: 98
Q1358:
Fill in the blank: Statistical TDM requires additional _______ to manage dynamic slot allocation.
A. Storage
B. Processing power
C. Bandwidth
D. Cables
Correct Answer:
B
Chapter: 98
Q1359:
What is a potential disadvantage of Statistical TDM?
A. Fixed bandwidth allocation
B. High synchronization requirements
C. Packet delay due to dynamic allocation
D. Inefficient use of network resources
Correct Answer:
C
Chapter: 98
Q1360:
Which of the following is an application of Statistical TDM?
A. Telephone networks
B. Digital TV broadcasting
C. Mobile data networks
D. AM Radio
Correct Answer:
C