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GCSE CS Data Quiz (characters, images and sounds)

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Quiz on GCSE CS Data Quiz (characters, images and sounds), created by Simon Howe on 16/03/2018.
Simon Howe
Quiz by Simon Howe, updated more than 1 year ago
Simon Howe
Created by Simon Howe over 7 years ago
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Resource summary

Question 1

Question
Text and characters are represented by the _______ code
Answer
  • Binary
  • ASCII
  • Hex
  • Two's complement

Question 2

Question
What is a limitation to ASCII ?
Answer
  • Can only hold letters and numbers
  • Data transfer is slow
  • 8 bits and 256 code sequences
  • Can represents lots of different languages

Question 3

Question
What would be returned with the ord() function ?
Answer
  • A number
  • A character
  • A binary code
  • A sting

Question 4

Question
An image is made up of many small point of colour called ______
Answer
  • Pic
  • Pixels
  • DPI
  • Resolution

Question 5

Question
Colour depth is the number of bits used to encode the colors of each pixel. so for a color depth of 8 how many colours would you have in the image?
Answer
  • 8
  • 255
  • 256
  • 512
  • 16000

Question 6

Question
Resolution describes the file size of the image?
Answer
  • True
  • False

Question 7

Question
Calculate the file size in MB as a whole number
Image:
19 (binary/octet-stream)
Answer
  • 7

Question 8

Question
_______ are taken at regular fixed intervals.
Answer
  • Sounds
  • Samples
  • Digital
  • Bit depth

Question 9

Question
Increasing the sample rate will improve the quality and increase the file size of the sound file?
Answer
  • True
  • False

Question 10

Question
Calculate the file size of the sound file in MB's to a whole number
Image:
20 (binary/octet-stream)
Answer
  • 15
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