Validation Routine

What is the purpose of a validation routine in programming?

• To check if the input data meets specified criteria
• To optimize the program performance
• To execute the program code
• To store data in a database

Which of the following is a common type of validation check?

• Range check
• Data encryption
• Code compilation
• Data compression

What is the likely outcome if a validation routine fails in a program?

• The program may produce errors or unexpected results
• The user will see a success message
• The program will run faster
• The data will be stored correctly

What is an example of a format check in a validation routine?

• Verifying that a phone number contains 10 digits
• Converting units of measurement
• Sorting a list of names alphabetically
• Calculating the average of input numbers

Why is it important to implement validation routines in software applications?

• To enhance data quality and prevent errors
• To make the user interface more attractive
• To reduce programming time
• To increase internet speed

What type of validation would you use to check if an email address contains an '@' symbol?

• Format validation
• Type validation
• Range validation
• Presence validation

In a validation routine, what does a 'presence check' ensure?

• That a required input field is not left empty
• That the data is unique
• That the data is within a specific range
• That the data is in the correct format

What is an example of range validation?

• Checking if a user's age is between 0 and 120
• Ensuring a username is unique
• Verifying an email format
• Counting the number of items in a list

What role do validation routines play in enhancing user experience?

• They provide immediate feedback on incorrect input
• They increase server speed
• They create the user interface
• They make the program run without bugs

What is the main difference between client-side and server-side validation?

• Client-side validation occurs in the user's browser, while server-side validation occurs on the server
• Client-side validation is faster than server-side validation
• Server-side validation is always more secure than client-side validation
• Client-side validation can prevent SQL injection attacks