A developer needs to confirm that a Contact trigger works correctly without changing the organization's data.
What should the developer do to test the Contact trigger?

A developer needs to create a custom visualforce button for the opportunity object page layout that will cause a web service to be called and redirect the user to a new page when clicked. Which three attributes need to be defined in the <apx:page> tag of the visualforce page to enable this functionality?

A developer wants to retrieve the Contacts and Users with the email addres '[email protected]'. Which SOSL statement should the developer use?

A developer executes the following query in Apex to retrieve a list of contacts for each account:
List<account> accounts = [Select ID, Name, (Select ID, Name from Contacts) from Account] ; Which two exceptions may occur when it executes? (Choose two.)

A developer wants to display all of the picklist entries for the Opportunity StageName field and all of the available record types for the Opportunity object on a Visualforce page.
Which two actions should the developer perform to get the available picklist values and record types in the controller? (Choose two.)