validation and authentication Flashcards
1
Q
What are the three types of validation check?
A
- range check
- length check
-presence check
2
Q
what can data validation ensure?
A
It can only ensure that the data entered is suitable.
3
Q
what is a range check?
A
It checks that a number or date is within the allowed range.
4
Q
What is a length check?
A
It check that the number of characters in a string is not too long or too short.
5
Q
What is a presence check?
A
It checks that data has been entered.
6
Q
what is verification?
A
it is used to double- check that the data has been entered in correctly.
7
Q
What is an authentication routine?
A
They are used to make sure that a person is who they say they are.
