Understanding Analogue and Digital Signals

What does an analogue measurement refer to?

• Discrete signals with finite values

• Continuous physical quantities and signals

• Discrete signals represented by 1s and 0s

• Digital display of measurements

Which of the following is an example of a digital device?

• A clock with hands

• A traditional thermometer

• A digital watch

• An analogue speedometer

What is the primary difference between analogue and digital signals?

• Analogue signals are represented by 1s and 0s, while digital signals are continuous

• Analogue signals are continuous waves, while digital signals are discrete and represented by 1s and 0s

• Analogue signals are more reliable, while digital signals face more interference

• Digital signals are used for audio and video transmissions, while analogue signals are not

Which of the following statements is true about digital signals?

• They are continuous and represented by waves

• They are less reliable than analogue signals

• They allow for the transmission of data between digital devices

• They are more expensive than analogue signals

What does the process of digitization involve?

• Converting digital information into analogue formats

• Transmitting analogue signals as digital signals

• Changing analogue data and information into a digital format

• Using analogue devices to measure digital signals

Which of the following devices uses both analogue and digital signals?

• A digital clock

• A traditional thermometer

• Bluetooth earphones

• An analogue speedometer

What is an analogue-to-digital converter (ADC) used for?

• Converting digital signals to analogue so they can be heard

• Converting analogue signals to digital for storage on a computer

• Converting digital measurements to analogue displays

• Converting binary code into physical quantities

What is a digital-to-analogue converter (DAC) used for?

• Converting digital signals to analogue so they can be played and heard

• Converting analogue signals to digital for transmission

• Converting digital measurements into analogue ones

• Converting binary data into analogue signals for storage

Why are digital signals generally preferred over analogue signals for transmission?

• They have a lower transmission rate

• They are more susceptible to interference

• They are less expensive and more flexible

• They are continuous and easier to transmit

What is an example of an analogue form that can be digitized?

• A digital photograph

• A printed document

• An email

• A binary code