You develop an HTML5 chat application.
You need to provide real-time updates to the messages that users post in the chat
application.
What should you do?

You are creating a rotating image of a company logo.
The logo must spin on a horizontal axis and on a vertical axis.
You need to use the least amount of development effort to meet the requirement.
What should you do?

You are developing an HTML5 web application that provides a discussion forum for users.
When a user registers to access the application, the user enters an email address.
Users can enter data that can result in cross-site scripting (XSS) attacks.
You need to ensure that email input is as secure as possible.
Which two techniques should you use? (Each correct answer presents a complete solution.
Choose two.)