What can you give a name to a group of input fields within a fieldset?

Which of the following is incorrect to set the loop attribute of <video> element in HTML5?

Which of the following is true after the browser fires an `updateready` event?

An <article> can contain <section> elements.

What does 'id' stands for?

What is the <!DOCTYPE> declaration in HTML5?

What does the action attribute in a <form> element do?

<keygen> tag element is new in HTML5.

How should you create a link for your website allowing users to email the webmaster if the webmaster’s email address is webmaster@xcompany.com?

Which event will the browser fire after checking all files in the cache manifest for updates, and finding several files that need to be updated?

Which of the following is not included in controls attribute in < video > element?