Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1801: Which layer controls how the transmission medium is used?
- A: Physical Layer
- B: Data-Link Layer
- C: Session Layer
- D: Application Layer
View Answer
B
Q1802: The Data-Link Layer can use ______ of the transmission medium.
- A: only a portion
- B: the full capacity
- C: both full and partial
- D: cannot use
View Answer
A
Q1803: What are the two categories of links in a network?
- A: Peer-to-peer and client-server
- B: Point-to-point and broadcast
- C: Star and Ring
- D: Serial and Parallel
View Answer
B
Q1804: In a point-to-point link, communication occurs between ______.
- A: All nodes
- B: One sender and many receivers
- C: Two nodes only
- D: Multiple devices
View Answer
C
Q1805: A broadcast link allows data to be sent to ______.
- A: One specific device
- B: All connected devices
- C: Only routers
- D: Only servers
View Answer
B
Q1806: What is the main role of the Media Access Control (MAC) sublayer?
- A: Error correction
- B: Managing IP addresses
- C: Controlling access to the medium
- D: Data compression
View Answer
C
Q1807: The Data-Link Control (DLC) sublayer is responsible for ______.
- A: access control
- B: routing
- C: table management
- D: node-to-node communication
View Answer
D
Q1808: The Data-Link Layer is divided into which two sublayers?
- A: MAC and IP
- B: IP and TCP
- C: DLC and MAC
- D: DLC and TCP
View Answer
C
Q1809: Which sublayer is responsible for controlling how devices share the transmission medium?
- A: MAC
- B: DLC
- C: Network
- D: Transport
View Answer
A
Q1810: Which sublayer ensures reliable delivery between two directly connected nodes?
- A: MAC
- B: DLC
- C: ARP
- D: ICMP
View Answer
B