Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2331: Which of the following is NOT one of the three types of HDLC frames?
- A: Information frames
- B: Supervisory frames
- C: Control frames
- D: Unnumbered frames
View Answer
C
Q2332: Fill in the blank: HDLC defines _______ main types of frames for data communication.
- A: 2
- B: 3
- C: 4
- D: 5
View Answer
B
Q2333: What is the purpose of an I-frame in HDLC?
- A: To send control information
- B: To send acknowledgment
- C: To carry user data
- D: To initiate connection
View Answer
C
Q2334: Which frame type in HDLC is used for flow and error control?
- A: I-frames
- B: S-frames
- C: U-frames
- D: D-frames
View Answer
B
Q2335: What does an S-frame in HDLC primarily manage?
- A: User data
- B: Control functions and error handling
- C: Connection setup
- D: Address assignment
View Answer
B
Q2336: Fill in the blank: U-frames in HDLC are used for _______.
- A: error correction and retransmission
- B: flow control
- C: link management and control
- D: sequencing and addressing
View Answer
C
Q2337: Which of the following best describes the I-frame in HDLC?
- A: It manages control data
- B: It initiates handshake protocols
- C: It is used to carry user information
- D: It performs signal encoding
View Answer
C
Q2338: What is the main function of S-frames in HDLC?
- A: To send user data
- B: To perform encryption
- C: To control and supervise data transfer
- D: To establish physical connection
View Answer
C
Q2339: Which of the following HDLC frames is involved in acknowledgment and control?
- A: I-frame
- B: S-frame
- C: U-frame
- D: D-frame
View Answer
B
Q2340: Fill in the blank: HDLC frames are categorized as I-frame, S-frame, and _______.
- A: R-frame
- B: F-frame
- C: C-frame
- D: U-frame
View Answer
D