Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q371: Which of the following is NOT a responsibility of the physical layer?
- A: Managing flow control
- B: Transmitting raw bits over a physical medium
- C: Converting digital data into analog signals
- D: Maintaining signal integrity
View Answer
A
Q372: Fill in the blank: The physical layer transmits data in the form of _______ across various media.
- A: signals
- B: packets
- C: frames
- D: messages
View Answer
A
Q373: Which type of signal is typically used in the physical layer for data transmission?
- A: Analog or digital signals
- B: Encrypted signals
- C: Compressed data
- D: Application-specific signals
View Answer
A
Q374: The process of converting digital data into analog signals is called _______.
- A: Modulation
- B: Multiplexing
- C: Compression
- D: Routing
View Answer
A
Q375: Fill in the blank: The physical layer operates on _______ data units in the OSI model.
- A: bits
- B: frames
- C: packets
- D: segments
View Answer
A
Q376: Which of the following transmission methods is associated with the physical layer?
- A: Optical fiber transmission
- B: HTTP data transfer
- C: DNS query resolution
- D: File encryption
View Answer
A
Q377: The physical layer determines which physical medium will be used for communication, such as _______ or wireless.
- A: cables
- B: routing tables
- C: error checking algorithms
- D: data encoding techniques
View Answer
A
Q378: Fill in the blank: The physical layer is responsible for defining _______ for electrical, mechanical, and procedural operations.
- A: specifications
- B: protocols
- C: algorithms
- D: communication standards
View Answer
A
Q379: Analog data is characterized by being _______.
- A: continuous
- B: discrete
- C: digital
- D: encoded
View Answer
A
Q380: Digital data is characterized by being _______.
- A: continuous
- B: discrete
- C: analog
- D: encoded
View Answer
B