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

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

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

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

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

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

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

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

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