Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2321: In HDLC, the acknowledgment travels _______ from the data.
- A: in the same direction
- B: in the opposite direction
- C: in parallel
- D: with the data
View Answer
B
Q2322: Which of the following is a key feature of the HDLC protocol?
- A: It requires the receiver to be constantly active
- B: It requires a flow control mechanism
- C: It requires a large buffer for data storage
- D: It uses byte-oriented communication
View Answer
B
Q2323: Fill in the blank: In the Stop-and-Wait protocol, after sending a frame, the sender waits for an acknowledgment before _______.
- A: sending the next frame
- B: terminating the communication
- C: receiving a new frame
- D: closing the link
View Answer
A
Q2324: Which of the following does HDLC use to implement data transmission?
- A: Single frames
- B: Bit frames
- C: Byte frames
- D: Bit-oriented frames
View Answer
D
Q2325: HDLC provides how many common transfer modes?
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
B
Q2326: Which of the following is a transfer mode used in HDLC?
- A: Asynchronous Unbalanced Mode
- B: Asynchronous Balanced Mode
- C: Synchronous Response Mode
- D: Synchronous Unbalanced Mode
View Answer
B
Q2327: Which HDLC mode operates with a master-slave configuration?
- A: Asynchronous Balanced Mode
- B: Normal Response Mode
- C: Balanced Synchronous Mode
- D: Unnumbered Response Mode
View Answer
B
Q2328: In which HDLC mode can both devices send and receive independently?
- A: Normal Response Mode
- B: Unnumbered Mode
- C: Asynchronous Balanced Mode
- D: Supervisory Mode
View Answer
C
Q2329: Fill in the blank: HDLC uses _______ and ABM as its two main transfer modes.
- A: Normal Routing Mode
- B: Normal Response Mode
- C: Advanced Balanced Mode
- D: Active Bridging Mode
View Answer
B
Q2330: Which of the following best describes ABM (Asynchronous Balanced Mode)?
- A: Only the master can initiate communication
- B: Slave devices control the communication
- C: All stations operate as equals and can send data independently
- D: Used only in wireless LANs
View Answer
C