A company wants to implement a new call center process for handling customer service calls. It requires service reps to ask for the caller's account number before proceeding with the rest of their call script. Following best practices, what should a developer use to meet this requirement?

Assuming the CreateOneAccount class creates one account and implements the Queuetable interface, which syntax tests the Apex code?
A)

B)

C)

D)

The Contact object has a custom field called "Zone." Its data type is "Text" and field length is 3. What is the outcome after executing the following code snippet in the org? List<Contact> contactsToBeInserted=new List<Contact>(); Contact contactInstance= new Contact(LastName='Smith', Department='Tech', Zone__c='IAD'); contactsToBeInserted.add(contactlnstance); contactInstance= new Contact(LastName='Sm1th', Department='Tech', Zone__c='PITT'); contactsToBeInserted.add(contactlnstance); Database.insert(contactsToBeInserted,true);

messages are rendering on the page. Which component should be added to the Visualforce page to display the message?

A developer built a Component to be used at the front desk for guests to self-register upon arrival at a kiosk.
The developer is now asked to create a Component for the Utility Tray to alert Users whenever a guest has arrived at the front desk. What should be used?