Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2461: What is the role of the protocol in a random-access system?
- A: To assign control to one station
- B: To regulate access based on medium state
- C: To define the routing path
- D: To encrypt communication
View Answer
B
Q2462: Fill in the blank: In random-access protocols, if the medium is _______ the station can send data.
- A: idle
- B: overloaded
- C: busy
- D: secured
View Answer
A
Q2463: What happens if the medium is busy in a random-access protocol?
- A: The station sends data anyway
- B: The station waits for the medium to become idle
- C: The station aborts the transmission
- D: The station sends a signal to clear the medium
View Answer
B
Q2464: Which of the following is true about contention in random-access protocols?
- A: Stations have priority based on data size
- B: Stations compete for the medium based on availability
- C: One station always controls the medium
- D: Stations wait for permission from a leader
View Answer
B
Q2465: Fill in the blank: In random-access protocols, contention happens when _______. two stations attempt to send at the same time
- A: one station has control
- B: there is only one station
- C: active transmission is completed
- D:
View Answer
A
Q2466: What does the decision to send in random-access protocols depend on?
- A: Network speed
- B: Medium availability
- C: Protocol type
- D: Station priority
View Answer
B
Q2467: In random-access, if two stations attempt to send data simultaneously, this leads to a _______.
- A: Conflict
- B: Failure
- C: Transmission complete
- D: Successful data transfer
View Answer
A
Q2468: What occurs when two stations send data at the same time in a random-access system?
- A: The data is successfully transmitted without issues
- B: A collision happens, and both stations must resend their data
- C: One station succeeds while the other is ignored
- D: The protocol stops transmission
View Answer
B
Q2469: Fill in the blank: The process where two stations send data simultaneously and cause issues in random-access protocols is called a _______.
- A: collision
- B: conflict
- C: saturation
- D: error
View Answer
B
Q2470: What is the name of the earliest random access method?
- A: CSMA
- B: ALOHA
- C: PPP
- D: TDMA
View Answer
B