Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q241: Which of the following is true about protocol layering?
- A: It simplifies the implementation of communication systems
- B: It creates a uniform protocol for all layers
- C: It reduces the need for intermediaries
- D: It handles all tasks with one protocol
View Answer
A
Q242: What is an example of protocol layering in a communication system?
- A: Sending a letter with multiple steps
- B: Using one protocol for the entire communication
- C: Transmitting a file over FTP
- D: Using different protocols for each part of communication
View Answer
D
Q243: Fill in the blank: In a protocol layering system, each layer _______ its function to facilitate communication.
- A: Performs
- B: Stores data
- C: Monitors traffic
- D: Secures information
View Answer
A
Q244: Which of the following is a correct example of how protocol layering works?
- A: Protocols for encryption and transmission at different layers
- B: Using one protocol for both sending and receiving
- C: Using the same protocol for routing and security
- D: No need for protocols in layering systems
View Answer
A
Q245: Fill in the blank: Protocol Layering allows different _______ to operate independently while communicating within the same system.
- A: Layers
- B: Devices
- C: Messages
- D: Tasks
View Answer
A
Q246: What is the role of each layer in protocol layering?
- A: To handle a specific task in the communication process
- B: To create a universal protocol for all tasks
- C: To make sure only one protocol is used
- D: To manage user preferences
View Answer
A
Q247: Which of the following statements best describes the concept of protocol layering?
- A: A method to organize protocols at different levels for efficient communication
- B: A way to use a single protocol for all tasks
- C: A technique to eliminate network delays
- D: A system to secure communication
View Answer
A
Q248: Fill in the blank: In protocol layering, the lower layers deal with _______ while the higher layers handle user data.
- A: Transmission and routing
- B: Encryption and error detection
- C: Application and presentation
- D: Routing and addressing
View Answer
A
Q249: What would happen if one layer in a protocol layering system fails?
- A: It could disrupt communication at that layer but not affect others
- B: It would slow down the entire system
- C: It would corrupt all the data being transmitted
- D: It would require new protocols
View Answer
A
Q250: Fill in the blank: Each layer in the protocol layering model communicates with the layers _______.
- A: Directly above and below it
- B: Only the one below it
- C: Only the one above it
- D: Through a network protocol
View Answer
A