What is jQuery UI?

• A standalone JavaScript library
• A jQuery plugin that provides widgets and effects
• A CSS framework
• A database engine

Which file must be included to use jQuery UI widgets?

• jquery.js
• jquery-ui.css
• jquery-ui.js
• config.js

How do you include jQuery UI from a CDN?

• By using a `<link>` tag only
• By downloading manually
• By adding `<script>` and `<link>` tags pointing to CDN URLs
• By using SQL queries

What is the purpose of the ThemeRoller tool?

• To create database schemas
• To customize jQuery UI themes
• To compress JavaScript
• To build HTML forms

Which widget is used to create collapsible content panels?

• Accordion
• Slider
• Dialog
• Tabs

What is the purpose of the `minDate` option in Datepicker?

• Sets minimum height
• Restricts earliest selectable date
• Sets minimal font size
• Sets minimal opacity

Which widget uses the `appendTo` option?

• Autocomplete
• Slider
• Tabs
• Accordion

Which option sets the number of columns in Autocomplete?

• columns
• multiple
• appendTo
• source

Which callback is triggered when a Dialog opens?

• open()
• onShow()
• start()
• begin()

Which method changes widget options dynamically?

• option()
• setOptions()
• updateOptions()
• changeOption()

What is the jQuery UI Widget Factory?

• A CSS framework
• A pattern to create stateful jQuery plugins
• A JavaScript debugger
• An animation engine

Which method in the Widget Factory is called when a widget is created?

• _create
• _init
• _start
• _begin

Which method is used to update an existing widget option?

• set
• update
• option
• change

Which Widget Factory method is used for cleanup?

• _destroy
• _remove
• _clear
• _end

Which method extends an existing jQuery UI widget?

• $.widget.extend
• $.ui.plugin
• $.extendWidget
• $.widget