1) How many bits does a character use in ASCII? a) 1 b) 8 c) 16 d) 32 2) How many characters in total can ASCII represent? a) 128 b) 50 c) 1024 d) 256 3) How many bits are required to store this message? Hello human a) 88 b) 11 c) 10 d) 80 4) Which of these will NOT save energy? a) Turn off devices when not in use b) Use energy-saving modes c) Use increased brightness on screens d) Be automatically put into sleep mode 5) Which GDPR principle does this describe? Data must be accurate and up-to-date. a) Data minimisation b) Accuracy c) Integrity and confidentiality d) Purpose limitation 6) Which GDPR principle does this describe? Only the minimum data necessary should be collected. a) Data minimisation b) Lawfulness, fairness and transparency c) Integrity and confidentiality d) Storage limitations 7) What does the GDPR principle Storage Limitations mean? a) Data is only kept for the time necessary b) Data must be handled with appropriate security c) You must be told about how your data is used d) Data is only for a specific and legitimate purpose you are told about 8) What is a firewall? a) A program that installs malicious software on your computer without your knowledge b) A program that will prevent unauthorised access to your computer system via the internet c) A program that tracks all your keystrokes.  d) A virus that allows anyone to access your computer 9) What turns english text into a cipher to prevent it being read? a) Encryption b) Decryption c) Key d) Networks 10) Bitmap or vector? Does not pixelate when scaled a) Bitmap b) Vector 11) Bitmap or vector? Stores images as pixels with unique values a) Bitmap b) Vector 12) Bitmap or vector? Allows objects to be layered on top of each other a) Bitmap b) Vector 13) Bitmap or vector? Generally has a smaller file size a) Bitmap b) Vector 14) Which piece of computer hardware carries out all calculations? a) Control unit b) Registers c) ALU d) Backing storage

Computer Systems Quiz

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