Data End of Topic WJEC Unit 1

1.    What are the tiny squares on an image referred to as?

• pixels
• circles
• squares
• dots

 

1.    Images that contain pixels are known as what type of image?

• Binary image
• Raster image
• Vector image
• Analog image

he number of bits that can be stored per pixel will determine what about the image?

• Image resolution and size
• Brightness and contrast
• File format and compression
• Color depth and quality

A decrease in colour depth will lead to....

• More bits stored per pixel

• Less bits stored per pixel

  What term is used to refer to the number of pixels that can be stored per inch?

• screen size
• pixels per foot
• megapixels
• resolution

1.    How many bits in a nibble?

• 8
• 16
• 2
• 4

1.    How many nibbles in a byte?

• 4
• 8
• 2
• 16

1.    How do you convert GB to TB?

• Add 1024

• Devide 1024

• Multiply 1024

• subtract 1024

1.    How do you convert GB to MB?

• Add 1024

• Devide 1024

• Multiply 1024

• subtract 1024

1.    Which of these is not a type of a compression method?

• Lossy

• Defragmentation

• Lossless