Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 86
Q1181:
In AM, higher modulation index results in _______.
A. Increased noise immunity
B. Reduced bandwidth
C. Increased power consumption
D. Improved digital signal quality
Correct Answer:
C
Chapter: 87
Q1182:
What does a Karnaugh Map help to simplify in Boolean algebra?
A. Logic gates
B. Boolean expressions
C. Arithmetic operations
D. Digital circuits
Correct Answer:
B
Chapter: 87
Q1183:
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
Correct Answer:
A
Chapter: 87
Q1184:
Representation of Analog information by an Analog signal is called _______.
A. Amplitude Modulation (AM)
B. Frequency Modulation (FM)
C. Pulse Code Modulation (PCM)
D. Digital Encoding
Correct Answer:
B
Chapter: 87
Q1185:
Which of the following is an example of digital communication?
A. Telephone call
B. FM radio
C. Email
D. Vinyl records
Correct Answer:
C
Chapter: 87
Q1186:
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
Correct Answer:
B
Chapter: 87
Q1187:
Which logic gate produces an output of 1 when both inputs are 1?
A. OR
B. AND
C. XOR
D. NOR
Correct Answer:
B
Chapter: 87
Q1188:
The process of transmitting signals over a distance is called _______.
A. Broadcasting
B. Encoding
C. Modulation
D. Compression
Correct Answer:
C
Chapter: 87
Q1189:
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
Correct Answer:
B
Chapter: 87
Q1190:
What is the primary purpose of Frequency Modulation (FM)?
A. Increase bandwidth
B. Reduce noise and interference
C. Improve digital transmission
D. Compress data
Correct Answer:
B
Chapter: 88
Q1191:
What does a Karnaugh Map help to simplify in Boolean algebra?
A. Logic gates
B. Boolean expressions
C. Arithmetic operations
D. Digital circuits
Correct Answer:
B
Chapter: 88
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
Correct Answer:
A
Chapter: 88
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
Correct Answer:
C
Chapter: 88
Q1194:
Phase Modulation (PM) is a type of _______.
A. Digital modulation
B. Analog modulation
C. Data compression
D. Signal encryption
Correct Answer:
B
Chapter: 88
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
Correct Answer:
B
Chapter: 88
Q1196:
Which logic gate produces an output of 1 when both inputs are 1?
A. OR
B. AND
C. XOR
D. NOR
Correct Answer:
B
Chapter: 88
Q1197:
The process of transmitting signals over a distance is called _______.
A. Broadcasting
B. Encoding
C. Modulation
D. Compression
Correct Answer:
C
Chapter: 88
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
Correct Answer:
C
Chapter: 88
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)
Correct Answer:
C
Chapter: 88
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
Correct Answer:
B