What is the most efficient way to validate that alpha-numeric data is in the correct format?

When a Text control is declared inside the Application tags using the mxml tags, it implies that:

In the MVC design pattern, which tier do data models of a flex application represent?

Which method of a Validator would you call to programmatically trigger the validation?

A component based on which of the following tags cannot be included inside the main mxml component?

Which of the following components would you use to interact with web services that define their interfaces in a WSDL document which is available as a URL?

Which of the following statements about the view cursor is true?

When a flex library project is compiled, what type of file is generated?

Which of the following is not a data-driven control?

The applicationComplete event of a container occurs before the creationComplete event?

Given below is the declaration of a Wipe-Effect. What would be the duration of the wipe effect?