Which method is commonly used to trigger client-side form validation when a form is submitted?

Which validation technique ensures that a required field is not left empty?

A). Length limitation

B). Regex pattern matching

C). Presence validation

D). Numeric validation

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

Which programming language is commonly used to implement client-side form validation?

A). HTML

B). CSS

C). JavaScript

D). PHP

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

Which event triggers client-side form validation?

A). onclick

B). onsubmit

C). onchange

D). onvalidate

Which method is commonly used to prevent form submission if validation fails on the client-side?

A). event.preventDefault()

B). form.submit()

C). validate()

D). validateForm()

How can JavaScript be used to validate form input on the client-side?

A). By accessing form elements and checking their values

B). By submitting form data to the server for validation

C). By storing validation rules in the HTML markup

D). By encrypting form data before submission

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 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 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