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WorksheetsUnderstanding Data Validation Techniques
Total questions: 20
Worksheet time: 10mins
Which of the following is an example of presence validation?
Ensuring a password contains at least one number
Checking that a required field is not left blank
Making sure a date is in the format DD/MM/YYYY
Confirming a value is between 1 and 100
What is the main purpose of authentication in computer systems?
To check if data is in the correct format
To verify the identity of a user
To ensure data is within a certain range
To check if a field is not empty
Which validation type would be most suitable for checking if a user’s age is between 13 and 18?
Presence validation
Type validation
Range validation
Format validation
Which of the following is an example of type validation?
Ensuring a phone number field contains only numbers
Checking that a password is at least 8 characters long
Making sure a field is not left blank
Confirming a value is between 1 and 10
Why is anticipating misuse important in computer systems?
It helps make the system look more attractive
It ensures the system is easy to use
It helps prevent errors and security breaches
It increases the speed of the system
Which of the following is NOT a method of authentication?
Password
Fingerprint scan
Range check
Security token
What does length validation check for?
That the data is within a certain range
That the data is the correct type
That the data is not too short or too long
That the data is in the correct format
Which of the following is an example of format validation?
Ensuring a field is not empty
Checking that a postcode matches the pattern AA1 1AA
Making sure a number is between 1 and 100
Confirming a value is a whole number
Which validation technique would be used to ensure a user enters a valid email address?
Range validation
Presence validation
Format validation
Type validation
What is the main reason for using presence validation on a registration form?
To check if the data is the correct type
To ensure all required fields are filled in
To make sure the data is within a certain range
To verify the user’s identity
Which of the following is an example of range validation?
Ensuring a password contains a special character
Checking that a number is between 1 and 10
Making sure a field is not left blank
Confirming a value is a string
Which type of validation would be most appropriate for checking if a user has entered a valid date in the format DD/MM/YYYY?
Presence validation
Type validation
Format validation
Range validation
Which of the following is NOT a type of validation?
Presence
Range
Encryption
Format
What is the main purpose of type validation?
To check if a field is not empty
To ensure data is the correct data type
To make sure data is within a certain range
To verify the user’s identity
Which of the following is an example of length validation?
Ensuring a username is between 6 and 12 characters long
Checking that a number is between 1 and 100
Making sure a field is not left blank
Confirming a value is a string
Which method is commonly used for authentication?
Range check
Password
Format check
Length check
Why is data validation important in computer systems?
It makes the system run faster
It ensures data is accurate and reliable
It increases the cost of the system
It makes the system look better
Which of the following would be an example of anticipating misuse?
Allowing users to enter any value they want
Providing clear error messages for invalid input
Ignoring incorrect data
Not checking user input
Which validation type would be used to ensure a user enters a whole number in a field?
Type validation
Presence validation
Length validation
Format validation
What is the main difference between validation and authentication?
Validation checks data, authentication checks identity
Validation checks identity, authentication checks data
Both check data only
Both check identity only
