Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2271: Which protocol improves over the Simple Protocol by introducing acknowledgment?
- A: Stop-and-Wait
- B: Go-Back-N
- C: Selective Repeat
- D: All of the above
View Answer
A
Q2272: Fill in the blank: ______ is the most basic protocol and is rarely used in real-world scenarios.
- A: Simple Protocol
- B: Stop-and-Wait
- C: Go-Back-N
- D: Selective Repeat
View Answer
A
Q2273: Which of the following statements is TRUE about Simple Protocol?
- A: It supports retransmission
- B: It waits for buffer clearance
- C: It doesn't handle errors
- D: It supports timeouts
View Answer
C
Q2274: What kind of protocol would a Finite State Machine represent if there is only one state for sending data?
- A: Stop-and-Wait
- B: Go-Back-N
- C: Simple Protocol
- D: Selective Repeat
View Answer
C
Q2275: Which protocol is modeled using the simplest FSM design?
- A: Go-Back-N
- B: Simple Protocol
- C: Selective Repeat
- D: Sliding Window
View Answer
B
Q2276: What does the Stop-and-Wait protocol use to detect corrupted frames?
- A: Parity bit
- B: Checksum
- C: CRC code
- D: Redundancy bit
View Answer
C
Q2277: In the Stop-and-Wait protocol, when does the sender send the next frame?
- A: After receiving a positive acknowledgment
- B: When the receiver is ready
- C: After a timeout
- D: After sending a frame without waiting for acknowledgment
View Answer
A
Q2278: Which of the following is a key feature of Stop-and-Wait protocol?
- A: It sends multiple frames at once
- B: It requires error correction using CRC
- C: It sends one frame at a time and waits for acknowledgment
- D: It is used for large data transfers
View Answer
C
Q2279: What is the role of the CRC in Stop-and-Wait protocol?
- A: It speeds up the transmission
- B: It checks for errors in transmitted frames
- C: It increases the data size
- D: It allows for faster acknowledgment
View Answer
B
Q2280: The Stop-and-Wait protocol works best when:
- A: High bandwidth is available
- B: Frames are large
- C: The channel is noisy
- D: The communication rate is low
View Answer
C