Which rule ensures that a field must not be left empty?
A). minlength
B). maxlength
C). required
D). email
Which jQuery plugin is commonly used for form validation?
A). jQuery UI
B). jQuery Mobile
C). jQuery Validation Plugin
D). jQuery Animate
Which option allows you to place error messages in a specific location?
A). errorPlacement
B). errorLocation
C). errorPosition
D). errorField
What does the email rule validate in a form field?
A). Field value is a URL
B). Field value is an email address
C). Field value is a number
D). Field value is a date
How do you apply validation to only specific fields in a form?
A). By using the field selector
B). By using the field attribute
C). By specifying fields in the validate method
D). By using CSS classes
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
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 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
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
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 }