Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q531: If a digital signal has 8 levels, each level will be represented by _______ bits.
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
C
Q532: The formula to calculate the number of bits per level in a digital signal with L levels is _______.
- A: log2 L
- B: log L
- C: L x log2
- D: log2 (L-1)
View Answer
A
Q533: If a signal has L levels, the number of bits per level can be calculated using _______.
- A: log2 L
- B: L
- C: L x log2
- D: log2 (L-1)
View Answer
A
Q534: The bit rate is expressed in _______.
- A: bits per second (bps)
- B: bits per minute (bpm)
- C: bytes per second (Bps)
- D: bytes per minute (Bpm)
View Answer
A
Q535: What is the unit for bit rate?
- A: kilobytes per second (kbps)
- B: bits per second (bps)
- C: megabytes per second (MBps)
- D: bytes per second (Bps)
View Answer
B
Q536: In digital communication, bit rate is calculated in _______.
- A: seconds
- B: bits per second
- C: bytes per second
- D: frequency
View Answer
B
Q537: The bit rate required for downloading text documents at 100 pages per second can be calculated using _______.
- A: a fixed bit rate
- B: bit rate per page
- C: a frequency rate per page
- D: the page content and characters per second
View Answer
D
Q538: What is the bit rate for a digitized 4-kHz analog voice signal with 8 bits per sample?
- A: 4 kbps
- B: 32 kbps
- C: 64 kbps
- D: 128 kbps
View Answer
B
Q539: The bit rate for high-definition TV (HDTV) is determined by _______.
- A: the pixel count and screen refresh rate
- B: the color depth and pixel resolution
- C: the compression ratio and screen refresh rate
- D: the aspect ratio and pixel count
View Answer
A
Q540: HDTV has a screen resolution of _______ pixels.
- A: 1080 by 720
- B: 1920 by 1080
- C: 800 by 600
- D: 1280 by 720
View Answer
B