Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2311: Which protocol implements the Stop-and-Wait protocol and is based on bit-oriented communication?
- A: HDLC
- B: PPP
- C: TCP/IP
- D: UDP
View Answer
A
Q2312: HDLC is commonly used in _______.
- A: point-to-point and multipoint links
- B: peer-to-peer networks
- C: HTTP connections
- D: bidirectional communication
View Answer
A
Q2313: Which of the following protocols is most similar to HDLC in its basic concepts?
- A: PPP
- B: Ethernet
- C: TCP/IP
- D: UDP
View Answer
A
Q2314: Which type of protocol does HDLC implement?
- A: Connectionless protocol
- B: Stop-and-Wait protocol
- C: Sliding window protocol
- D: Connection-oriented protocol
View Answer
B
Q2315: Fill in the blank: HDLC uses a _______-oriented protocol for communication over point-to-point and multipoint links.
- A: bit
- B: byte
- C: packet
- D: frame
View Answer
A
Q2316: The concept of piggybacking in communication helps in _______.
- A: reducing network overhead
- B: increasing data transmission speed
- C: reducing errors
- D: increasing error detection speed
View Answer
A
Q2317: Which of the following protocols is HDLC based on?
- A: Stop-and-Wait protocol
- B: Selective Repeat protocol
- C: Go-Back-N protocol
- D: Sliding Window protocol
View Answer
A
Q2318: In the Stop-and-Wait protocol, the receiver acknowledges every frame by sending a _______.
- A: timeout frame
- B: unique identifier
- C: positive acknowledgment
- D: signal frame
View Answer
C
Q2319: Fill in the blank: In a point-to-point communication system, HDLC uses _______ for sending data and acknowledgments.
- A: separate channels
- B: one channel for data and another for acknowledgment
- C: a combined channel
- D: for error detection
View Answer
A
Q2320: Which of the following is true regarding the data flow in both Simple and Stop-and-Wait protocols?
- A: They both use bidirectional data flow
- B: They both use unidirectional data flow
- C: They both send data in one direction with acknowledgment in the same direction
- D: They send data in one direction and acknowledgment in the opposite direction
View Answer
D