Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1731: Which layer is responsible for node-to-node communication in a network?
- A: Network Layer
- B: Application Layer
- C: Data-Link Layer
- D: Transport Layer
View Answer
C
Q1732: The Internet is a combination of networks connected using ______.
- A: Cables and modems
- B: Wireless signals only
- C: Satellites only
- D: Routers and switches
View Answer
D
Q1733: When a packet travels from one host to another, it must pass through ______.
- A: The same subnet
- B: Multiple networks
- C: A firewall only
- D: A single device
View Answer
B
Q1734: Which of the following best describes the function of the Data-Link layer?
- A: Error correction and encryption
- B: End-to-end delivery
- C: Node-to-node delivery and framing
- D: Packet switching
View Answer
C
Q1735: The Data-Link layer sits directly above the ______.
- A: Network Layer
- B: Application Layer
- C: Physical Layer
- D: Session Layer
View Answer
C
Q1736: Fill in the blank: The ______ layer ensures that data travels correctly between nodes in the same network.
- A: Transport
- B: Network
- C: Data-Link
- D: Application
View Answer
C
Q1737: What does the Data-Link layer control in a computer network?
- A: Transmission of emails
- B: Node-to-node communication
- C: File encryption
- D: User authentication
View Answer
B
Q1738: The role of switches in a network primarily lies at which layer?
- A: Transport Layer
- B: Application Layer
- C: Data-Link Layer
- D: Session Layer
View Answer
C
Q1739: Which of the following devices can operate at the Data-Link layer?
- A: Modem
- B: Hub
- C: Router
- D: Switch
View Answer
D
Q1740: Fill in the blank: ______ are used to interconnect different networks to form the Internet.
- A: Firewalls
- B: Routers and switches
- C: Repeaters
- D: Coaxial cables
View Answer
B