Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1741: Which layer handles addressing and routing between networks?
- A: Physical Layer
- B: Transport Layer
- C: Data-Link Layer
- D: Network Layer
View Answer
D
Q1742: Which is NOT a function of the Data-Link layer?
- A: Framing
- B: Error detection
- C: Node-to-node delivery
- D: End-to-end delivery
View Answer
D
Q1743: What happens when a packet moves from one host to another on the Internet?
- A: It stays in the same layer
- B: It bypasses all switches
- C: It passes through multiple networks
- D: It uses only TCP
View Answer
C
Q1744: Which of the following layers is closest to the physical transmission of data?
- A: Application Layer
- B: Session Layer
- C: Transport Layer
- D: Data-Link Layer
View Answer
D
Q1745: Which device decides the best path for a packet between networks?
- A: Switch
- B: Modem
- C: Router
- D: Bridge
View Answer
C
Q1746: Fill in the blank: A ______ reads MAC addresses to forward frames.
- A: Router
- B: Switch
- C: Repeater
- D: Firewall
View Answer
B
Q1747: The Data-Link layer is responsible for which of the following tasks?
- A: Session tracking
- B: End-to-end communication
- C: Logical addressing
- D: Framing and error detection
View Answer
D
Q1748: Which layer ensures that data from one device can be understood by another directly connected device?
- A: Network Layer
- B: Data-Link Layer
- C: Transport Layer
- D: Presentation Layer
View Answer
B
Q1749: What address type is used at the Data-Link layer?
- A: MAC address
- B: IP address
- C: Port number
- D: Email address
View Answer
A
Q1750: Which of these layers encapsulates packets into frames?
- A: Application Layer
- B: Transport Layer
- C: Data-Link Layer
- D: Network Layer
View Answer
C