Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1771: Which layer provides services to the Network Layer?
- A: Physical Layer
- B: Application Layer
- C: Data-Link Layer
- D: Transport Layer
View Answer
C
Q1772: Which layer provides services to the Data-Link Layer?
- A: Network Layer
- B: Physical Layer
- C: Session Layer
- D: Transport Layer
View Answer
B
Q1773: What function breaks data into manageable units for transmission?
- A: Framing
- B: Error Control
- C: Flow Control
- D: Congestion Control
View Answer
A
Q1774: What is the primary role of flow control in the Data-Link Layer?
- A: Detecting errors
- B: Preventing packet loss
- C: Managing data rate between sender and receiver
- D: Handling IP addressing
View Answer
C
Q1775: What function of the Data-Link Layer ensures accurate data delivery by checking for corruption?
- A: Framing
- B: Flow Control
- C: Error Control
- D: Congestion Control
View Answer
C
Q1776: Fill in the blank: ______ is used to ensure the sender does not overwhelm the receiver.
- A: Error detection
- B: Flow Control
- C: Packet switching
- D: Segmentation
View Answer
B
Q1777: Which of the following is NOT a service provided by the Data-Link Layer?
- A: Framing
- B: Flow Control
- C: DNS resolution
- D: Error Control
View Answer
C
Q1778: Which layer performs congestion control along with flow and error control?
- A: Data-Link Layer
- B: Application Layer
- C: Physical Layer
- D: Network Layer
View Answer
A
Q1779: What is the purpose of congestion control in the Data-Link Layer?
- A: To convert analog to digital
- B: To avoid excessive network traffic
- C: To compress data
- D: To encrypt messages
View Answer
B
Q1780: Fill in the blank: The Data-Link Layer provides services to the ______ layer.
- A: Transport
- B: Network
- C: Session
- D: Application
View Answer
B