Which method prevents the default form submission if validation fails?
A). submitHandler: function(form)
B). beforeSubmit: function(form)
C). onError: function(form)
D). preventSubmit: function(form)
Which method is used to initialize form validation with the jQuery Validation Plugin?
A). .validate()
B). .check()
C). .verify()
D). .init()
What is the primary purpose of form validation?
A). Enhance visual design
B). Secure data submission
C). Improve page load speed
D). Reduce server requests
How can you display all error messages in one place instead of next to each field?
A). Use the errorSummary option
B). Use the errorLabel option
C). Use the errorContainer option
D). Use the errorList option
What is the default event that triggers form validation in the jQuery Validation Plugin?
A). onSubmit
B). onBlur
C). onChange
D). onFocus
Which jQuery plugin is commonly used for form validation?
A). jQuery UI
B). jQuery Mobile
C). jQuery Validation Plugin
D). jQuery Animate
What does the equalTo rule validate?
A). Field value must be unique
B). Field value must be a number
C). Field value must match another field
D). Field value must be an email address
Which rule ensures that a field must not be left empty?
A). minlength
B). maxlength
C). required
D). email
How can you add a custom validation method using the jQuery Validation Plugin?
A). $.validator.custom()
B). $.validator.addMethod()
C). $.validator.newMethod()
D). $.validator.create()
What is the correct way to specify validation rules in the jQuery Validation Plugin?
A). rules: { fieldName: rule }
B). fields: { rule: fieldName }
C). options: { fieldName: rule }
D). validate: { rule: fieldName }