This quiz, titled '3D1X2 5 level CDC vol. 1', tests knowledge on signal processing techniques such as analog and digital modulation. It covers key concepts like PCM, CVSD modulation, and the characteristics of amplitude modulation, enhancing skills crucial for communications technology professionals.
Delta modulation (DM)
Digital modulation
Analog modulation
Adaptive modulation
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Delta Modulation (DM)
Digital modulation
Analog modulation
Adaptive modulation
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Sidebands.
Sine waves.
Frequency translators.
Modulating fequencies.
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Twice that of the modulating signal.
Half that of the modulating signal.
Twice that of the carrier signal.
Half that of the carrire signal.
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Filtering.
Detection.
Compression.
Companding.
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2 decibels (dB) of improvement
4 decibels of improvement
6 decibels of improvement
8 decibels of improvement
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Carrier wave.
Pure sine wave.
Resultant wave.
Composite wave.
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A phase modulation (PM).
Pulse modulation.
A frequency modulation.
An amplitude modulation (AM).
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Transmitted intelligence
Intensity of speech
Composite waves
Splatter
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Phase.
Amplitude.
Frequency.
Apmlitude and frequency.
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Modulation index.
Rate of phase shift.
Frequency of the modulating signal.
Amplitude of the modulating signal.
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Delta
Frequency shift keying (FSK)
Pulse-amplitude modulation (PAM)
Binary-phaseshift keying or bi-phase shift keying (BPSK)
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Four times
Double
Half
The same
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Carrier presence is required to detect change
It requires a less complex receiver than a basic phase shift keying (PSK) signal
It requires a more complex receiver than a basic PSK signal
The demodulator needds to detect changes in the absolute phase values
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Pulse-amplitude modulation (PAM)
Pulse-duration modulation (PDM)
Pulse-positon modulation (PPM)
Pulse-code modulation (PCM)
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Pulse-amplitude modulation (PAM).
Pulse-duration modulation (PDM).
Pulse-positon modulation (PPM).
Pulse-code modulation (PCM).
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Pulse-amplitude modulation (PAM).
Pulse-duration modulation (PDM).
Less tolerant of noise than frequency modulation (FM).
Analog-to-digital conversion
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3
4
5
8
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Encoding.
Companding.
Uniform quantizing.
Nonuniform quantizing.
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Channel
Trunk
Time slot
Port
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Low speed and high speed
High speed and EBCDIC
CCITT and low speed
EBCDIC and CCITT
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Frequency division.
Binary division.
Pulse division.
Time division.
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Wavelengths or lambas.
Wavelengths or gammas.
Frequencies or lambdas.
Frequencies or gammas.
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1
2
3
4
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Bits.
Bytes.
Codes.
Blocks.
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Baud
Baudot
Sense interface
Bits per second (bps)
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Impedance mismatch.
System timing faults.
Improper equipment settings.
Changes in atmospheric conditions.
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Synchronous, asynchronous, and isochronous.
Isochronous, asynchronous, and bisynchronous.
Nonsynchronous, bisynchronous, and synchronous.
Asynchronous, bisynchronous, and nonsynchronous.
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Timing pulses are transmitted within the signal stream.
Start and stop pulses control data transmission.
System timing is not of critical importance.
All data bits are the same length in time.
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Synchronous operation.
Asynchronous operation.
Synchronous and/or isochronous operation.
Asynchronous and/or synchronous operation.
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Non-return-to-zero (NRZ) level.
Non-return-to-zero mark.
Non-return-to-zero space.
Return-to-zero level.
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Non-return-to-zero (NRZ) level.
Non-return-to-zero mark.
Non-return-to-zero space.
Return-to-zero.
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The information is transmitted in three different voltage levels.
A logic one is transmitted as positive voltage if the previous logic one was negative.
The level always returns to zero for 50 percent of the bit cycle after every transition.
Bipolar violations are intentionally inserted into a data signal to break up long strings of zeros.
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Provide error-free signaling.
Operate at higher data rates.
Eliminate bipolar violations.
Maintain ones density standards.
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The information is transmitted in three different voltage levels.
A logic one is transmitted as positive voltage if the previous logic one was negative.
The level always returns to zero for 50 percent of the bit cycle after every transition.
Bipolar violations are intentionally inserted into a data signal to break up long strings of zeros.
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Lack of mid-bit transitions.
Use of mid-bit transitions for timing.
Data being encoded in the mid-bit transitions.
Voltage levels used for signaling the mid-bit transitions.
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8
12
24
48
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8
12
24
48
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Pulse dialing.
Tone dialing.
Digit dialing.
Address dialing.
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Dial tone.
Ringback signal.
Off-hook alert.
Call waiting.
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Dial tone.
Busy signal.
Off-hook alert.
Call waiting.
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Record warning.
Fast busy signal.
Loop-start.
E and M.
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When dial tone is present.
On-hook condition.
Off-hook condition.
During the ringback signal.
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Bit robbing.
Bit stuffing.
Frame correction.
Frame enhancement.
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Associated mode.
Nonassociated mode.
Quasi-associated mode.
Multi-associated mode.
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Institute of Electronic and Electrical Engineers and CCITT psophometric.
Noise analysis and CCITT psophometric.
CCITT psophometric and C-message.
C-message and noise analysis.
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Receive equipment timing is set properly.
Transmit equipment timing is set properly.
Receive equipment can find its place in the bit stream.
Transmit equipment can find its place in the bit stream.
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Latency.
Phase delay.
Propagation constant.
Phase delay distortion.
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