Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2711: Fill in the blank: The Ethernet protocol functions at the ______ and physical layer of the OSI model.
- A: application
- B: network
- C: data-link
- D: transport
View Answer
C
Q2712: Which type of networks can be either wired or wireless?
- A: Local and wide area networks
- B: Only LANs
- C: Only WANs
- D: Only peer-to-peer networks
View Answer
A
Q2713: Which of the following is a characteristic of wired networks?
- A: Higher mobility
- B: Physical cable connection
- C: Slower speeds
- D: Signal interference
View Answer
B
Q2714: Which layer is responsible for physical transmission of data over the medium?
- A: Application layer
- B: Session layer
- C: Transport layer
- D: Physical layer
View Answer
D
Q2715: Fill in the blank: In a wireless network, data is transmitted through ______.
- A: ethernet cables
- B: light pulses
- C: electromagnetic waves
- D: copper wires
View Answer
C
Q2716: Which of the following is true about the physical layer?
- A: It routes packets
- B: It defines how bits are transmitted
- C: It handles user login
- D: It runs browser protocols
View Answer
B
Q2717: What is a primary role of the data-link layer?
- A: Error detection and frame synchronization
- B: Route optimization
- C: User authentication
- D: Signal amplification
View Answer
A
Q2718: In Ethernet communication, data is organized in ______.
- A: frames
- B: packets
- C: chunks
- D: streams
View Answer
A
Q2719: Wired Ethernet networks typically use which type of cable?
- A: Optical fiber
- B: Coaxial cable
- C: Twisted pair cable
- D: All of the above
View Answer
D
Q2720: Which of the following best describes Ethernet?
- A: Wireless protocol
- B: Wired protocol used in LAN
- C: Protocol used for internet routing
- D: Email transfer protocol
View Answer
B