CS 11 Chapter 1.2 & 1.3

Which of the following best describes a pixel?

• A mathematical description of a shape

• The smallest element of a bitmap image

• The number of colours in an image

• A type of sound sample

Which of the following is a vector graphic format?

• JPEG

• PNG

• SVG

• BMP

What does colour depth refer to?

• Number of pixels in an image

• Number of colours an image can display

• Brightness of an image

• Width and height of an image

Which of these affects the quality of a digital sound recording?

• Screen resolution

• Sampling rate

• Number of pixels

• Colour depth

What happens when the colour depth of a bitmap image is increased?

• File size decreases and image quality decreases

• File size increases and image quality increases

• File size stays the same and image quality stays the same

• File size decreases but image quality increases

Which statement about vector graphics is true?

• They become blurry when enlarged

• They are stored as pixels

• They are ideal for photographs

• They store shapes using mathematical equations

Which option correctly describes the difference between analogue and digital sound?

• Analogue sound is stored as binary numbers, digital sound is continuous

• Analogue sound is continuous, digital sound is stored as binary numbers

• Analogue sound uses pixels, digital sound uses samples

• Analogue sound is louder than digital sound

Which of these will increase the file size of a sound file?

• Decreasing the sampling rate

• Decreasing the bit depth

• Increasing the sampling rate

• Recording with only one microphone instead of two

What does sampling resolution (bit depth) measure?

• Number of samples taken per second

• Number of possible volume levels per sample

• Number of pixels in a sound file

• Quality of compression

Which image type is most suitable for a company logo?

• Bitmap image

• Vector graphic

• JPEG photo

• PNG photo