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Input and Output Chapter 6
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- 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.It ensures that a person who is using the program has made a choice so that some data can be entered.
- 4What is a range check?When data is entered it would be expected to fall within a certain range.
- 5Give an example of when a length check would be used.When asked to create a password it will often informed that it must have a certain number of letters and numbers to be availed password.
- 6Why would a programmer use a modulus check?Indicates when an input error has been made.
- 7When creating an authentication routine into a program what are the five elements it would require?A validation routine, presence check, range check, length check and modulus check.
- 8What is transcription error?Data entry errors that occur when a user is entering data.
- 9What is a logical error?
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- Fichas sobre Input and Output Chapter 6, creado por Harriet Barlow el 22/09/2017.
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- Harriet Barlow
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- Creado por Mrs H. Noble · 22 sep 2017
- Copiado por Harriet Barlow · 22 sep 2017
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