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
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 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 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 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 specify a custom error message for a validation rule?
A). error: 'Message'
B). message: 'Message'
C). msg: 'Message'
D). messages: { fieldName: 'Message' }
Which rule ensures that a field must not be left empty?
A). minlength
B). maxlength
C). required
D). email
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
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 purpose of the remote rule in jQuery Validation Plugin?
A). To check field value uniqueness on the server
B). To validate field value against a regex
C). To prevent default action
D). To handle field validation on the client-side