digital transmission
MCQsQuestion.com has 22 Question/Answers about Topic digital transmission
NRZ-L and NRZ-I both have an average signal rate of
- A. N
- B. N/8
- C. N/4
- D. N/2
- Correct Answer: Option B
Bipolar with S-Zero Substitution (BSZS) is commonly used in
- A. South America
- B. Central America
- C. North America
- D. Latin America
- Correct Answer: Option C
Quadrature amplitude modulation is a combination of
- A. BPSK and PSK
- B. ASK and BPSK
- C. ASK and PSK
- D. BPSK and QPSK
- Correct Answer: Option C
In NRZ-I inversion or lack of inversion determines the
- A. Value of bytes
- B. value of bits
- C. Status of Frame
- D. None of above
- Correct Answer: Option B
In synchronous transmission, we send bits one after another without
- A. Start bit
- B. Stop bit
- C. gap bit
- D. All of above
- Correct Answer: Option D
Line coding, block coding and scrambling are three techniques of
- A. Digital to digital conversion
- B. Digital to analog conversion
- C. Analog to analog conversion
- D. Analog to digital conversion
- Correct Answer: Option A
Unit of signal rate is
- A. Bits per second
- B. Baud
- C. micro seconds
- D. Hertz
- Correct Answer: Option B
What would be minimum bandwidth of Manchester and differential Manchester?
- A. 4 times that of NRZ
- B. 4times that of RZ
- C. 2times that of NRZ
- D. 8times that of RZ
- Correct Answer: Option C
A term that refers to a code that is generated to detect some or all of errors occurred during transmission is
- A. Baseline Wandering
- B. Built in error detection
- C. Self-detect error code
- D. Bug resolver
- Correct Answer: Option B
MLT-3 schemes uses three levels
- A. 0, V,-V
- B. 0,1,2
- C. M,L,T
- D. 0,-1,-2
- Correct Answer: Option A
Last step in Pulse Code Modulation (PCM) is
- A. Quantization
- B. Sampling
- C. Encoding
- D. Modulation
- Correct Answer: Option C
Baseline wandering is prevented by the
- A. Scrambling technique
- B. block coding scheme
- C. Line coding scheme
- D. None of above
- Correct Answer: Option C
Transmission mode in which multiple bits are sent with each clock trick is
- A. Parallel
- B. serial
- C. synchronous
- D. Asynchronous
- Correct Answer: Option A
Most common technique to change an analog signal to digital data is called
- A. Line code modulation
- B. Scrambling
- C. Block code modulation
- D. pulse code modulation
- Correct Answer: Option D
In adaptive delta modulation, for better performance, value of delta is
- A. fixed
- B. not fixed
- C. infinity
- D. zero
- Correct Answer: Option B