Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1131: Which Boolean algebra simplification tool represents expressions as a matrix?
- A: Karnaugh Map
- B: Truth Table
- C: Binary Tree
- D: Logic Gates
View Answer
A
Q1132: A constellation diagram is used in _______.
- A: Digital Modulation
- B: Network Routing
- C: Data Encryption
- D: Boolean Algebra
View Answer
A
Q1133: The Karnaugh Map is particularly useful for simplifying expressions with how many variables?
- A: 2 to 3
- B: 4 to 6
- C: 7 to 8
- D: More than 10
View Answer
B
Q1134: In digital communications, the two main axes in a constellation diagram represent _______.
- A: Time and Frequency
- B: In-phase and Quadrature components
- C: Power and Voltage
- D: Bit Rate and Baud Rate
View Answer
B
Q1135: A Karnaugh Map is structured using _______.
- A: Rows and Columns
- B: Trees and Nodes
- C: Flowcharts
- D: Binary Heaps
View Answer
A
Q1136: Which of the following is NOT a valid simplification technique in Boolean algebra?
- A: Karnaugh Map
- B: Boolean Theorems
- C: Constellation Diagram
- D: Quine-McCluskey Method
View Answer
C
Q1137: The primary benefit of using a Karnaugh Map is to _______.
- A: Minimize hardware complexity
- B: Increase circuit delay
- C: Introduce errors in logic circuits
- D: Reduce power consumption
View Answer
A
Q1138: In a constellation diagram, a higher density of dots represents _______.
- A: Lower data rate
- B: Higher data rate
- C: More noise
- D: Lower power consumption
View Answer
B
Q1139: The process of arranging dots in a constellation diagram corresponds to _______.
- A: Digital encoding
- B: Modulation scheme
- C: Logical simplification
- D: Encryption technique
View Answer
B
Q1140: Which modulation technique is best visualized using a constellation diagram?
- A: Amplitude Modulation (AM)
- B: Frequency Modulation (FM)
- C: Quadrature Amplitude Modulation (QAM)
- D: Pulse Code Modulation (PCM)
View Answer
C