Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q3221: Which of the following problems is specific to wireless networks?
- A: Interference
- B: Signal routing
- C: Network congestion
- D: Firewall attacks
View Answer
A
Q3222: In wireless communication, _______ is the loss of signal strength as it travels over a distance.
- A: Attenuation
- B: Propagation
- C: Error
- D: Multipath
View Answer
A
Q3223: Which factor does NOT significantly affect the performance of wired LANs?
- A: Interference
- B: Signal loss
- C: Distance
- D: None of the above
View Answer
A
Q3224: What is the effect of interference in a wireless LAN?
- A: It can reduce signal quality and communication speed
- B: It improves signal strength
- C: No effect on performance
- D: Only affects wired connections
View Answer
A
Q3225: Fill in the blank: Multipath propagation in wireless communication can cause _______ in signal reception.
- A: Interference
- B: Better signal strength
- C: Attenuation
- D: High speed of data transfer
View Answer
A
Q3226: Which characteristic is unique to wireless LANs compared to wired LANs?
- A: Multipath propagation
- B: Low data rates
- C: Fixed connectivity
- D: None of the above
View Answer
A
Q3227: Which of the following is a common cause of signal attenuation in wireless networks?
- A: Distance from the access point
- B: High interference levels
- C: Low battery power
- D: Device overheating
View Answer
A
Q3228: Fill in the blank: _______ occurs when multiple signals from different sources arrive at the receiver at slightly different times, causing interference.
- A: Multipath propagation
- B: Attenuation
- C: Interference
- D: Error
View Answer
A
Q3229: What does the term "interference" refer to in the context of wireless LANs?
- A: The disruption of signal quality by other electronic devices
- B: Device overheating causing signal failure
- C: Device disconnection
- D: None of the above
View Answer
A
Q3230: Which of the following affects wireless LANs but not wired LANs?
- A: Multipath propagation
- B: Signal attenuation
- C: High data transfer rate
- D: None of the above
View Answer
A