Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1331: What does Synchronous Time-Division Multiplexing (TDM) do?
- A: Assigns fixed time slots to each signal
- B: Dynamically allocates time slots
- C: Uses different frequencies for each signal
- D: Compresses data before transmission
View Answer
A
Q1332: In Synchronous TDM, time slots are allocated to signals _______.
- A: Dynamically
- B: Based on demand
- C: Evenly and in a fixed manner
- D: Only when data is available
View Answer
C
Q1333: Fill in the blank: In Synchronous TDM, each device gets a _______ time slot, even if it has no data to send.
- A: Dynamic
- B: Fixed
- C: Variable
- D: Random
View Answer
B
Q1334: Which of the following is a major disadvantage of Synchronous TDM?
- A: High bandwidth utilization
- B: Wasted bandwidth if a device has no data to send
- C: Inefficient for analog signals
- D: Requires separate frequencies for each user
View Answer
B
Q1335: What is the main difference between Synchronous TDM and Statistical TDM?
- A: Synchronous TDM dynamically assigns slots
- B: Statistical TDM allocates time slots even when there is no data
- C: Synchronous TDM assigns fixed time slots
- D: Statistical TDM does not use multiplexers
View Answer
C
Q1336: Which component is responsible for assigning time slots in Synchronous TDM?
- A: Demultiplexer
- B: Multiplexer
- C: Router
- D: Switch
View Answer
B
Q1337: Fill in the blank: In Synchronous TDM, the time slots are divided _______ among all sources.
- A: Equally
- B: Randomly
- C: On demand
- D: As per signal strength
View Answer
A
Q1338: What happens to unused time slots in Synchronous TDM?
- A: They are assigned to other devices
- B: They remain empty and unused
- C: They are used for error correction
- D: They are combined to form new time slots
View Answer
B
Q1339: What is the primary advantage of Synchronous TDM?
- A: Efficient bandwidth usage
- B: Guaranteed transmission for each source
- C: Reduces hardware costs
- D: Reduces the need for synchronization
View Answer
B
Q1340: Which of the following is an example of Synchronous TDM?
- A: Ethernet
- B: SONET/SDH
- C: Wi-Fi
- D: Bluetooth
View Answer
B