Discrete Time System and Signal Processing

Which of the following is done to convert a continuous time signal into discrete time signal?

• Modulating

• Sampling

• Differentiating

• Integrating

A high pass filter is

• a filter with a bell shaped curve around the filters' active frequency

• a filter with a constant level after reaching the filters active frequency

• a filter that cuts the high frequency component of a signal

• a filter that cuts the low frequency component of a signal

A low pass filter is

• a filter with a constant level after reaching the filters active frequency

• a filter with a bell shaped curve around the filters' active frequency

• a filter that cuts the high frequency component of a signal

• a filter that cuts the low frequency component of a signal

What audio file format is best for use on the web?

• .MP3
• .MIDI
• .AAC
• .WAV

Any physical phenomenon that carries some information is

• System

• Processor

• Signal

• None

The two basic types of signals are analog and:

• Digilog

• Digital

• Vetilog

• Sinewave

The interface between an analog signal and a digital processor is

• D/A converter

• A/D converter

• Modulator

• Demodulator

Which of the following characterizes an analog quantity?

• Discrete levels represent changes in a quantity.

• Its values follow a logarithmic response curve.

• It can be described with a finite number of steps.

• It has a continuous set of values over a given range.

The process of conversion of continuous time signal into a discrete time signal is known as

• Aliasing

• Sampling

• Convolution

• None of the above

Which type of signal is represented by discrete values?

• Nois signal

• Non linear

• Analog

• Digital