J277 OCR 1.2.3 Units MCQ's

How many bytes are there per character in a text file? (1/2)

• 0.5

• 1

• 1.5

• 2

Which is the smallest of these data capacities? (4/5)

• 2 KB

• 2049 bytes

• 0.5 MB

• 3 GB

Which is the largest of these data capacities? (9)

• 2048 MB

• 2 GB

• 2050 MB

• 100000 KB

Which formulae can be used to estimate the file size of an image? (7-9)

• number of pixels * number of bytes per pixel

• number of pixels

• number of pixels wide * number of pixels high * number of bytes per pixel

• number of pixels wide number of bytes per pixel * number of pixels

Which formulae can be used to estimate the file size of a sound file? (7-9

• bytes per sample channels * height + number of minutes

• samples per second * number of seconds

• samples per second * bytes per sample * duration

• Bytes per sample samples per second * channels * duration

How many bytes are needed to store 32769 different colours? (9)

• 1

• 2

• 3

• 4