Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2541: In CSMA/CD, what does a station do after sending a frame?
- A: Wait for an acknowledgment
- B: Shut down temporarily
- C: Monitor the medium for collision
- D: Log out of the network
View Answer
C
Q2542: Fill in the blank: If a collision is detected in CSMA/CD, the station ______ the frame.
- A: deletes
- B: forwards
- C: ignores
- D: retransmits
View Answer
D
Q2543: What action is taken after a collision is detected in CSMA/CD?
- A: The station continues transmitting
- B: The station sends a jamming signal and retries later
- C: The station waits for user input
- D: The system reboots
View Answer
B
Q2544: In the CSMA/CD protocol, how is a collision detected?
- A: By monitoring energy levels on the medium
- B: By analyzing the destination address
- C: By checking data size
- D: Through a time stamp
View Answer
A
Q2545: Which diagram best represents CSMA/CD working logic?
- A: Network topology diagram
- B: Flow chart or flow diagram
- C: Bar chart
- D: Truth table
View Answer
B
Q2546: Fill in the blank: CSMA/CD was mainly used in ______ networks.
- A: wireless
- B: old Ethernet
- C: Wi-Fi
- D: fiber optic
View Answer
B
Q2547: What is the purpose of sending a jamming signal in CSMA/CD?
- A: To inform the receiver of successful delivery
- B: To increase the speed of transmission
- C: To ensure all stations are aware of the collision
- D: To reset the network
View Answer
C
Q2548: When using CSMA/CD, if no collision is detected, what does the station assume?
- A: Frame delivery failed
- B: Transmission was successful
- C: Collision occurred silently
- D: It must retransmit
View Answer
B
Q2549: In CSMA/CD, what does a station monitor for collision detection?
- A: Buffer queue
- B: Signal amplitude
- C: Energy level on the medium
- D: Timestamp of packet
View Answer
C
Q2550: Which of the following best describes the behavior of CSMA/CD after detecting a collision?
- A: Immediate resend
- B: Backoff and retry
- C: Random delay and retry
- D: Stop transmitting
View Answer
C