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Input and Output Chapter 6
Fichas del conjunto (7)
- 1What does GIGO stand for?Garbage in Garbage out
- 2What is the purpose of validation?Validation checks that the data is sensible
- 3Describe what a presence check is used for.a presence check ensures that the user has actually input and there is something actually there to be used
- 4What is a range check?a range check makes sure that the input data falls between two points.
- 5Give an example of when a length check would be used.a length check would be used to ensure that a password is of the right size for the program to allow it.
- 6Why would a programmer use a modulus check?a programmer would use a modulus check digit to ensure that a bank card is valid or that a phone number is real.
- 7When creating an authentication routine into a program what are the five elements it would require?a list of all usernames and passwords, data for the username, a routine to check if it exists, password input, a check for the passwords correctness.
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- GCSE Computing Fichas sobre Input and Output Chapter 6, creado por Brandon Beckett el 22/09/2017.
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- Brandon Beckett
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- Creado por Mrs H. Noble · 22 sep 2017
- Copiado por Brandon Beckett · 22 sep 2017
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