Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2551: Fill in the blank: CSMA/CD reduces the chance of collision but does not ______ them.
- A: handle
- B: ignore
- C: prevent
- D: limit
View Answer
C
Q2552: What happens when multiple stations transmit at the same time in CSMA/CD?
- A: No data is sent
- B: Data is encrypted
- C: Signals collide and become garbled
- D: A signal is prioritized
View Answer
C
Q2553: Which condition is checked first in CSMA/CD before sending data?
- A: Station priority
- B: Energy level on channel
- C: Idle medium
- D: Frame size
View Answer
C
Q2554: Which of these protocols is based on CSMA/CD?
- A: Ethernet
- B: Wi-Fi
- C: TCP
- D: ARP
View Answer
A
Q2555: Fill in the blank: A collision is detected in CSMA/CD by comparing ______ sent and ______ received.
- A: bits, signals
- B: signals, packets
- C: frames, signals
- D: signals, signals
View Answer
D
Q2556: What must a station do after sending a jamming signal in CSMA/CD?
- A: Stop and wait for next slot
- B: Retry immediately
- C: Leave the network
- D: Turn off transmitter
View Answer
A
Q2557: What does CSMA/CA stand for?
- A: Carrier Signal Management Architecture with Collision Avoidance
- B: Carrier Sense Multiple Access with Collision Avoidance
- C: Central Signal Medium Access for Control Algorithm
- D: Collision Sensing Mechanism with Access
View Answer
B
Q2558: CSMA/CA was primarily designed for which type of network?
- A: Ethernet
- B: Fiber optics
- C: Wired networks
- D: Wireless networks
View Answer
D
Q2559: What is the main goal of CSMA/CA?
- A: Increase collision rate
- B: Detect collisions
- C: Avoid collisions
- D: Improve encryption
View Answer
C
Q2560: Which of the following is NOT one of the three strategies used in CSMA/CA?
- A: Interframe Space
- B: Contention Window
- C: Carrier Decoding
- D: Acknowledgements
View Answer
C