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
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 }
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' }
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
Which rule ensures that a field must not be left empty?
A). minlength
B). maxlength
C). required
D). email
Which method is used to initialize form validation with the jQuery Validation Plugin?
A). .validate()
B). .check()
C). .verify()
D). .init()
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
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
How do you include the jQuery Validation Plugin in your HTML file?
A). Using a script tag
B). Using a link tag
C). Using an iframe
D). Using an embed tag
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)