Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q761: Line coding schemes can be divided into how many broad categories?
- A: Two
- B: Four
- C: Five
- D: Six
View Answer
C
Q762: Which of the following is not a category of line coding schemes?
- A: Unipolar
- B: Polar
- C: Analog
- D: Bipolar
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C
Q763: What type of line coding uses three voltage levels: positive, negative, and zero?
- A: Unipolar
- B: Polar
- C: Bipolar
- D: Multilevel
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C
Q764: Fill in the blank: Bipolar line coding uses ______ voltage levels to represent data.
- A: Single
- B: Two
- C: Three
- D: Multiple
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C
Q765: Multilevel line coding is primarily used for ______.
- A: Long-distance communication
- B: High-speed data transmission
- C: Low-speed data transfer
- D: Audio signals
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B
Q766: Which of the following line coding schemes provides the highest bandwidth efficiency?
- A: Unipolar
- B: Polar
- C: Multilevel
- D: Bipolar
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C
Q767: Fill in the blank: ______ line coding allows each data element to be represented by more than one signal element.
- A: Bipolar
- B: Multilevel
- C: Polar
- D: Unipolar
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B
Q768: What is a key advantage of multilevel line coding schemes?
- A: Simplicity
- B: Low error rates
- C: Bandwidth efficiency
- D: High synchronization
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C
Q769: Fill in the blank: Multitransition line coding schemes involve ______ transitions for each bit transmitted.
- A: No
- B: One
- C: Two
- D: Multiple
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D
Q770: Multitransition line coding is used for ______ applications.
- A: High-speed
- B: Low-power
- C: Secure
- D: Analog
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A