Classification of Signals

Which of the following is a continuous-time signal?

• Digital audio signal

• Temperature measured every hour

• Sine wave

• Binary sequence

A signal that repeats itself after a certain period is called:

• Aperiodic

• Periodic

• Stochastic

• Deterministic

Which of the following is an example of a discrete-time signal?

• Voltage across a resistor

• Daily stock prices

• Continuous sine wave

• Analog clock time

A signal that can take any value within a given range is known as:

• Digital

• Analog

• Discrete

• Quantized

Which type of signal is characterized by having values only at specific intervals?

• Continuous-time

• Discrete-time

• Analog

• Stochastic

A signal that does not repeat over time is called:

• Periodic

• Aperiodic

• Deterministic

• Stochastic

Which of the following signals is deterministic?

• White noise

• Random binary sequence

• Cosine wave

• Thermal noise

A signal that can be described by a mathematical function is known as:

• Stochastic

• Deterministic

• Random

• Aperiodic

Which of the following is an energy signal?

• Sine wave

• Unit step function

• Exponential decay

• Random noise

A signal with finite energy but zero average power is called:

• Power signal

• Energy signal

• Periodic signal

• Aperiodic signal