Unit 1 Digital Data

Which of the following is the correct definition of sample rate?

• Quantity of data measured in bits that is processed in a given amount of time

• The number of bits used to store each sound sample

• The number of audio sound samples captured every second to represent the sound digitally

Which of the following is the correct definition of bit depth?

• The number of bits used to store each sound sample

• Quantity of data measured in bits that is processed in a given amount of time

• The number of audio sound samples

Which of the following is the correct definition of bit rate?

• The quantity of data measured in bits that is processed in a given amount of time

• The number of bits used to store each sound sample

• The number of audio sound samples

Which of the following is an example of analogue audio input?

• Keyboard

• Microphone

• Speech recognition software

What is digital data represented in?

• Varying signals that represent physical quantity

• Binary

What is a buffer?

• An allocated part of memory that is used to store a downloaded part of video before it is watched

• Process that allows videos to be viewed on a website or app straight away without having to wait for the full video to be downloaded

What is meant by streaming?

• An allocated part of memory that is used to store a downloaded part of the video before it is watched

• The process that allows a video to be viewed on a website or app straight away