Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q361: Which of the following is a key characteristic of data communication?
- A: Reliable transmission
- B: Device interconnectivity
- C: Network security
- D: Software management
View Answer
A
Q362: Fill in the blank: A computer network can be used to _______ between multiple devices, enabling shared resources.
- A: establish communication
- B: transmit data
- C: power devices
- D: encrypt communications
View Answer
A
Q363: What would be a primary use case of data communication?
- A: Streaming videos over the internet
- B: Sharing data across local devices
- C: Connecting multiple computers to a server
- D: Setting up a Wi-Fi network
View Answer
B
Q364: What is the primary function of the physical layer in communication?
- A: Transmitting raw data
- B: Providing error correction
- C: Routing data between networks
- D: Managing network protocols
View Answer
A
Q365: Which of the following is an example of a physical medium for communication?
- A: Copper cables
- B: IP addresses
- C: Protocols used for encryption
- D: Routing tables
View Answer
A
Q366: Fill in the blank: The physical layer is the _______ layer in the OSI model.
- A: first
- B: second
- C: third
- D: fourth
View Answer
A
Q367: Which device operates at the physical layer of the OSI model?
- A: Hub
- B: Router
- C: Switch
- D: Bridge
View Answer
A
Q368: The physical layer deals with the _______ of data across the communication medium.
- A: transmission
- B: encryption
- C: routing
- D: session management
View Answer
A
Q369: Fill in the blank: _______ is the process of converting data into signals for transmission at the physical layer.
- A: Encoding
- B: Decoding
- C: Error detection
- D: Packetization
View Answer
A
Q370: What is the role of a modem at the physical layer?
- A: Modulate and demodulate signals
- B: Route packets through the network
- C: Provide encryption for data
- D: Direct data flow between applications
View Answer
A