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

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

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

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

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

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

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

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

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