Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q711: Fill in the blank: ______ represents the data elements in a transmission system.
- A: Signal elements
- B: Data elements
- C: Frames
- D: Packets
View Answer
B
Q712: What type of conversion includes line coding, block coding, and scrambling?
- A: Analog-to-digital conversion
- B: Digital-to-digital conversion
- C: Digital transmission
- D: Analog transmission
View Answer
B
Q713: Fill in the blank: Digital-to-digital conversion includes ______, block coding, and scrambling.
- A: Line coding
- B: Modulation
- C: Signal conversion
- D: Analog conversion
View Answer
A
Q714: What does a signal element represent in digital transmission?
- A: Data elements
- B: The carrier of data elements
- C: Bit
- D: Frequency
View Answer
B
Q715: What is the primary purpose of scrambling in digital-to-digital conversion?
- A: Increase bandwidth
- B: Eliminate synchronization problems
- C: Reduce noise
- D: Improve signal strength
View Answer
B
Q716: What is the relationship between signal elements and data elements?
- A: Signal elements carry data elements
- B: Data elements carry signal elements
- C: Signal elements are larger
- D: Data elements are larger
View Answer
A
Q717: Fill in the blank: ______ is a necessary step in digital-to-digital conversion to encode data.
- A: Scrambling
- B: Block coding
- C: Line coding
- D: Modulation
View Answer
C
Q718: What is the primary difference between data elements and signal elements?
- A: Data elements are carriers
- B: Signal elements are carriers
- C: Both represent information
- D: They are the same
View Answer
B
Q719: Fill in the blank: ______ conversion converts an analog signal into a digital signal.
- A: Digital-to-digital
- B: Analog-to-digital
- C: Digital transmission
- D: Line coding
View Answer
B
Q720: What method is used for encoding data in digital-to-digital conversion?
- A: Signal multiplexing
- B: Line coding
- C: Modulation
- D: Analog processing
View Answer
B