How can you prevent a form from being submitted if it is invalid?
A). By using the onsubmit option
B). By using the preventSubmit option
C). By using the blockSubmit option
D). By using the submitHandler option
What is the purpose of the highlight option in jQuery Validation Plugin?
A). To change the color of valid fields
B). To change the color of invalid fields
C). To add a CSS class to valid fields
D). To add a CSS class to invalid fields
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 }
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)
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
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 do you specify a custom error message for a validation rule?
A). error: 'Message'
B). message: 'Message'
C). msg: 'Message'
D). messages: { fieldName: 'Message' }
How do you validate a field that should only contain numbers?
A). Use the number rule
B). Use the digits rule
C). Use the numeric rule
D). Use the integer rule
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()
How can you make a field optional in jQuery Validation Plugin?
A). By not including it in the rules section
B). By setting the required rule to false
C). By using the optional rule
D). By setting the field type to optional