Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1361: Fill in the blank: Statistical TDM is also referred to as _______ TDM.
- A: Frequency-Division
- B: Demand-Based
- C: Static
- D: Synchronous
View Answer
B
Q1362: What type of communication system benefits most from Statistical TDM?
- A: Systems with variable data transmission
- B: Systems with continuous fixed data rates
- C: Systems requiring constant synchronization
- D: Systems using only analog signals
View Answer
A
Q1363: Fill in the blank: Statistical TDM is most effective when the number of active users is _______ than the total users in the network.
- A: Greater
- B: Equal to
- C: Less
- D: More than double
View Answer
C
Q1364: Which network service provider is more likely to use Statistical TDM?
- A: A company with fixed bandwidth allocation
- B: A provider with high-demand variable data users
- C: A satellite TV provider
- D: A traditional telephone network
View Answer
B
Q1365: What is a key challenge of Statistical TDM?
- A: Wasting bandwidth
- B: Delay due to dynamic slot assignment
- C: Inflexibility
- D: Requires more cables
View Answer
B
Q1366: What is a primary security goal in wireless communication?
- A: High speed data transfer
- B: Power saving
- C: Preventing eavesdropping and jamming
- D: Multi-user access
View Answer
C
Q1367: Why is redundancy added in spread spectrum systems?
- A: To increase power usage
- B: To improve signal quality
- C: To reduce bandwidth
- D: To encrypt data
View Answer
B
Q1368: The spreading process in spread spectrum should be ______.
- A: related to original signal
- B: opposite to the original signal
- C: independent of the original signal
- D: randomly chosen
View Answer
C
Q1369: Spread spectrum requires bandwidth that is ______.
- A: smaller than the original signal
- B: same as the original signal
- C: larger than the original signal
- D: exactly half the original signal
View Answer
C
Q1370: Which of the following is TRUE about spread spectrum?
- A: It removes the need for encryption
- B: It increases vulnerability to interference
- C: It spreads the original signal over a wider bandwidth
- D: It reduces signal strength
View Answer
C