A) To process images using analog technology
B) To create music using traditional instruments
C) To analyze and modify signals using digital systems
D) To store signals in physical media

A) A signal that changes smoothly over time
B) A continuous signal with infinite values
C) A signal defined at discrete time points
D) A signal that amplifies quickly

A) Optical lens filter
B) Analog voltage regulator
C) Mechanical water filter
D) Finite Impulse Response (FIR) filter

A) To convert analog signals to digital signals
B) To efficiently compute the frequency components of a signal
C) To store signals in a database
D) To amplify the signal power

A) To perform mathematical operations on digital signals
B) To analyze physical vibrations
C) To generate random noise signals
D) To convert analog signals to digital signals

A) It determines the color of digital signal displays
B) It calculates the signal-to-noise ratio of a signal
C) It predicts the lifetime of digital signal processors
D) It states that a signal should be sampled at twice its highest frequency

A) Square root
B) Exponential growth
C) Convolution
D) Trigonometry

A) Assigning discrete levels to continuous signal values
B) Creating random signal patterns
C) Doubling the amplitude of a signal
D) Reducing the number of samples in a signal

A) To amplify high-frequency noise
B) To create reverberation effects
C) To reduce spectral leakage in Fourier analysis
D) To increase signal distortion