Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2261: Which two reactions are associated with each event in FSM?
- A: Stop and wait
- B: Delay and retry
- C: Action list and next state
- D: Reset and loop
View Answer
C
Q2262: Which of the following data-link protocols uses a finite state machine for managing transitions?
- A: Simple Protocol
- B: Selective-Repeat
- C: All data-link protocols
- D: None of the above
View Answer
C
Q2263: Which data-link layer protocol assumes the receiver can handle any frame immediately?
- A: Simple Protocol
- B: Go-Back-N
- C: Stop-and-Wait
- D: Selective Repeat
View Answer
A
Q2264: In Simple Protocol, the sender sends frames ______.
- A: only after ACKs
- B: one after another randomly
- C: in sequence without waiting for acknowledgment
- D: after a timeout
View Answer
C
Q2265: Fill in the blank: The Simple Protocol assumes that the receiver can never be ______.
- A: overwhelmed with incoming frames
- B: delayed by interrupts
- C: connected to multiple senders
- D: in a different state
View Answer
A
Q2266: Which of the following is true about Simple Protocol?
- A: It uses buffer at both ends
- B: It has no flow or error control
- C: It waits for ACKs before sending
- D: It is a complex protocol
View Answer
B
Q2267: What is the main assumption made by the Simple Protocol?
- A: The channel is always busy
- B: The receiver never drops frames
- C: The receiver processes instantly
- D: The sender buffers all data
View Answer
C
Q2268: Which FSM component is missing in the Simple Protocol?
- A: Transition table
- B: State definition
- C: Error handler
- D: Flow control module
View Answer
D
Q2269: What happens if the receiver cannot process the frame in Simple Protocol?
- A: It sends NAK
- B: It drops the frame
- C: It buffers the frame
- D: This case is not handled
View Answer
D
Q2270: The protocol where the sender sends a frame and waits for acknowledgment before sending another is called:
- A: Stop-and-Wait
- B: Selective Repeat
- C: Simple Protocol
- D: Sliding Window
View Answer
A