Digital Signal Processing Quiz

What is the primary goal of Digital Signal Processing (DSP)?

• To amplify signals

• To convert analog signals into digital form for manipulation

• To create signals

• To enhance analog systems

Which of the following is a characteristic of a deterministic signal?

• It is unpredictable

• It is defined for all time instances

• It is always periodic

• It only occurs at discrete intervals

Which of the following is NOT a classification of discrete-time signals?

• Energy signals

• Power signals

• Linear signals

• Aperiodic signals

What is the Nyquist rate in the context of sampling?

• The minimum frequency at which a signal can be sampled without aliasing

• The maximum sampling rate

• The frequency at which signals are distorted

• The number of samples per second

A system is said to be causal if:

• The output depends on future inputs

• The output depends on past and future inputs

• The output depends only on present and past inputs

• The system has no output

The impulse response of a system is:

• The output when the system is fed with a constant input

• The output when the system is fed with a step input

• The output when the system is fed with an impulse signal

• The system's input

Which of the following represents a system that is linear and time-invariant?

• A system where output doubles if the input is doubled

• A system where the output changes with time

• A system where output depends only on future inputs

• A system with a non-constant coefficient

Which is true about energy signals?

• They have finite power

• They have infinite energy

• They have finite energy

• They are periodic

A step response is the output when the system is excited by:

• A unit impulse

• A sinusoidal signal

• A unit step signal

• A ramp signal

The Z-Transform is used to:

• Analyze signals in the time domain

• Represent systems in the frequency domain

• Analyze signals in the frequency domain

• Simplify the sampling process