Answer & Solution
Answer: Option C
Solution:
Presence validation, also known as required field validation, ensures that a field must be filled out before the form can be submitted.
Q
Which validation technique ensures that a required field is not left empty?
Related Questions on Average
What is the purpose of displaying error messages in client-side form validation?
A). To guide users through the form
B). To execute server-side scripts
C). To encrypt form data
D). To validate user credentials
What is the role of CSS in client-side form validation?
A). To style error messages
B). To validate form input
C). To execute validation logic
D). To intercept form submissions
How does client-side form validation improve data accuracy?
A). By identifying errors before submission
B). By encrypting data during transmission
C). By validating server responses
D). By storing data securely in the database
What is the advantage of using client-side form validation over server-side validation?
A). Immediate feedback to users
B). Access to server resources
C). Simplified form structure
D). Increased server load
What is the primary purpose of client-side form validation?
A). Enhance server performance
B). Improve user experience
C). Secure data transmission
D). Validate server responses
How does client-side form validation contribute to better user feedback?
A). By providing instant feedback to users
B). By encrypting data during transmission
C). By storing data securely in the database
D). By minimizing server-side processing
What is the benefit of validating form input on the client-side?
A). Reduced server load
B). Faster page rendering
C). Improved database performance
D). Enhanced security
Which attribute is commonly used to specify validation rules in HTML form elements?
A). validate
B). required
C). validation
D). validate-rule
Which method is commonly used to trigger client-side form validation when a form is submitted?
A). validateForm()
B). event.preventDefault()
C). form.submit()
D). validate()
What is the purpose of the validate() method in client-side form validation libraries?
A). To trigger form submission
B). To validate form input
C). To encrypt form data
D). To execute server-side scripts for validation