Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1191: What does a Karnaugh Map help to simplify in Boolean algebra?
- A: Logic gates
- B: Boolean expressions
- C: Arithmetic operations
- D: Digital circuits
View Answer
B
Q1192: Social networks enable users to communicate with each other by posting _______.
- A: information, comments, messages, images, and videos
- B: technical documents
- C: programming code
- D: commercial advertisements
View Answer
A
Q1193: Representation of Analog information by an Analog signal is called _______.
- A: Amplitude Modulation (AM)
- B: Frequency Modulation (FM)
- C: Phase Modulation (PM)
- D: Digital Encoding
View Answer
C
Q1194: Phase Modulation (PM) is a type of _______.
- A: Digital modulation
- B: Analog modulation
- C: Data compression
- D: Signal encryption
View Answer
B
Q1195: In Boolean algebra, De Morgan’s Theorem is used to _______.
- A: Convert logical expressions into standard form
- B: Simplify complex expressions
- C: Design arithmetic circuits
- D: Analyze electrical networks
View Answer
B
Q1196: Which logic gate produces an output of 1 when both inputs are 1?
- A: OR
- B: AND
- C: XOR
- D: NOR
View Answer
B
Q1197: The process of transmitting signals over a distance is called _______.
- A: Broadcasting
- B: Encoding
- C: Modulation
- D: Compression
View Answer
C
Q1198: What is the primary purpose of Phase Modulation (PM)?
- A: Improve data security
- B: Reduce signal distortion
- C: Modify phase for signal transmission
- D: Convert analog signals to digital
View Answer
C
Q1199: In which type of modulation does the phase of the carrier signal vary with the message signal?
- A: Frequency Modulation (FM)
- B: Amplitude Modulation (AM)
- C: Phase Modulation (PM)
- D: Pulse Code Modulation (PCM)
View Answer
C
Q1200: Which of the following is NOT a characteristic of social networks?
- A: Real-time communication
- B: Privacy protection by default
- C: User-generated content
- D: Networking with others
View Answer
B