Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2161: What is the key idea behind using XOR in Forward Error Correction?
- A: Data duplication
- B: Error detection without redundancy
- C: Reconstruction of missing packets
- D: Faster transmission
View Answer
C
Q2162: Which statement is TRUE about burst errors?
- A: They can only be corrected with CRC
- B: They cannot be corrected at all
- C: They can be corrected using interleaved Hamming codes
- D: They are ignored in multimedia
View Answer
C
Q2163: What does DLC stand for in computer networks?
- A: Data Line Communication
- B: Data Link Control
- C: Digital Link Connection
- D: Data Length Control
View Answer
B
Q2164: Which of the following is NOT a function of Data Link Control?
- A: Framing
- B: Flow Control
- C: Error Control
- D: Packet Routing
View Answer
D
Q2165: Fill in the blank: Data Link Control (DLC) handles communication between ______.
- A: application layers
- B: physical devices
- C: adjacent nodes
- D: remote servers
View Answer
C
Q2166: Which function of DLC ensures that data is sent at a rate the receiver can handle?
- A: Framing
- B: Error Control
- C: Flow Control
- D: Congestion Avoidance
View Answer
C
Q2167: What is the role of Error Control in DLC?
- A: Prevents data duplication
- B: Handles packet addressing
- C: Detects and corrects errors
- D: Controls data compression
View Answer
C
Q2168: What does the framing function in DLC involve?
- A: Dividing the physical medium
- B: Packing bits into identifiable frames
- C: Encrypting messages
- D: Prioritizing data frames
View Answer
B
Q2169: Fill in the blank: In framing, a message is separated by adding a ______ and a ______ address.
- A: IP, MAC
- B: Logical, Physical
- C: Sender, Destination
- D: Source, Port
View Answer
C
Q2170: In DLC, what ensures that one frame is distinguishable from another?
- A: Error control
- B: Addressing
- C: Framing
- D: Segmentation
View Answer
C