A developer is asked to set a picklist field to 'Monitor' on any new Leads owned by a subnet of Users.
How should the developer implement this request?

Which control statement should a developer use to ensure that a loop body executes at least once?

A developer created a Lightning component to display a short text summary for an object and wants to use it with multiple Apex classes.
How should the developer design the Apex classes?

Which approach should a developer use to add pagination to a Visualforce page?

A company wants to create an employee rating program that allows employees to rate each other. An employees average rating must be displayed on the employee record. Employees must be able to create rating records, but are not allowed to create employee records. Which two actions should a developer take to accomplish this task?