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

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

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

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

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

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

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

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