A developer has a Apex controller for a Visualforce page that takes an ID as a URL parameter. How should the developer prevent a cross site scripting vulnerability?

Which collection type provides unique key/value pairings of data?

A developer created a Visualforce page and custom controller to display the account type field as shown below. Custom controller code: public class customCtrlr{ private Account theAccount; public String actType; public customCtrlr() { theAccount =[SELECT Id, Type FROM Account WHERE Id =
:apexPages.currentPage().getParameters().get('id')]; actType = theAccount.Type; } } Visualforce page snippet:
The Account Type is {!actType} The value of the account type field is not being displayed correctly on the page. Assuming the custom controller is property referenced on the Visualforce page, what should the developer do to correct the problem?

A developer has the controller class below.

Which code block will run successfully in an execute anonymous window?

Which statement about change set deployments is accurate? (Choose 3)