Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q881: In the PCM encoding step, the quantized signal is converted into _______ using a specific code.
- A: digital code
- B: analog code
- C: sinusoidal code
- D: noise code
View Answer
A
Q882: The primary purpose of the encoding step in PCM is to _______.
- A: convert the signal into a digital format
- B: amplify the signal
- C: forward the signal to the receiver
- D: increase the frequency
View Answer
B
Q883: In PCM, the encoding step converts the output of the quantization step into _______.
- A: continuous analog values
- B: digital code
- C: original analog values
- D: continuous digital signals
View Answer
B
Q884: What is the typical output format after the encoding step in PCM?
- A: Binary code
- B: Analog signal
- C: Frequency-modulated signal
- D: Waveform signal
View Answer
A
Q885: Which of the following is used in the encoding process of PCM?
- A: A/D Converter
- B: Modulator
- C: Decoder
- D: Amplifier
View Answer
A
Q886: The encoding step in PCM uses _______ to represent quantized values.
- A: binary code
- B: analog signal
- C: continuous values
- D: quantized noise
View Answer
A
Q887: In PCM, the encoded signal is suitable for _______ transmission.
- A: analog
- B: continuous
- C: digital
- D: serial
View Answer
B
Q888: Which step follows encoding in the PCM process?
- A: Transmission
- B: Decoding
- C: Amplification
- D: Compression
View Answer
B
Q889: The process of converting analog data into digital data is known as _______.
- A: Quantization
- B: Modulation
- C: Digitization
- D: Encoding
View Answer
C
Q890: Which of the following is a technique used for Analog-to-Digital Conversion (ADC)?
- A: Pulse Code Modulation (PCM)
- B: Amplitude Modulation (AM)
- C: Frequency Modulation (FM)
- D: Phase Modulation (PM)
View Answer
A