Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1811: Fill in the blank: The ______ sublayer of the Data-Link Layer is concerned with media sharing.
- A: MAC
- B: DLC
- C: ARP
- D: IP
View Answer
A
Q1812: Which of the following is a key function of the MAC sublayer?
- A: IP Addressing
- B: Media access control
- C: Error control
- D: Data segmentation
View Answer
B
Q1813: What type of link is typically used in home internet connections like DSL or Fiber?
- A: Point-to-point
- B: Broadcast
- C: Mesh
- D: Ring
View Answer
A
Q1814: In a broadcast link, when one node transmits, ______.
- A: Only the router receives it
- B: All other nodes receive it
- C: No other node receives it
- D: Only selected nodes receive it
View Answer
B
Q1815: What is a characteristic of the DLC sublayer?
- A: Responsible for data encryption
- B: Manages IP routing
- C: Controls error detection and flow
- D: Controls port number assignment
View Answer
C
Q1816: What is used as an identifier at the network layer?
- A: MAC address
- B: Port number
- C: IP address
- D: Host name
View Answer
C
Q1817: IP addresses are responsible for identifying ______ in a network.
- A: Links
- B: Nodes
- C: Connections
- D: Routers
View Answer
B
Q1818: Which of the following best describes the role of IP addresses?
- A: They guide packets across all links
- B: They define the start and end nodes
- C: They encrypt data
- D: They generate packets
View Answer
B
Q1819: Fill in the blank: In the Internet, we cannot make a packet reach its destination using only ______.
- A: routing tables
- B: IP addresses
- C: DNS entries
- D: Gateways
View Answer
B
Q1820: Which of the following is NOT defined by source and destination IP addresses?
- A: Start point
- B: End point
- C: Transmission link
- D: Path across networks
View Answer
D