A developer creates a Lightning web component that imports a method within an Apex class. When a Validate button is pressed, the method runs to execute complex validations.
In this implementation scenario, which artifact is part of the Controller according to the MVC architecture?

Universal Containers wants Opportunities to no longer be editable when reaching the Closed/Won stage.
How should a developer accomplish this?

In terms of the MVC paradigm, what are two advantages of implementing the layer of a Salesforce application using Aura Component-based development over Visualforce? Choose 2 answers

Universal Containers stores the availability date on each Line Item of an Order and Orders are only shipped when all of the Line Items are avaible. Which method should be used to calculate the estimated ship date for an Order?

Which two operations can be performed using a formula field? Choose 2 answers