A company decides to implement a new process where every time an Opportunity is created, a follow up Task should be created and assigned to the Opportunity Owner.
What is the most efficient way for a developer to implement this?

A developer is creating a Visualforce page that allows users to create multiple Opportunities. The developer is asked to verify the current user's default Opportunity record type, and set certain default values based on the record type before inserting the record. How can the developer find the current user's default record type?

A company wants to create an employee rating program that allows employees to rate each other. An employee's 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? choose 2 answers

A developer is creating an enhancement to an application that will allow people to be related to their employer.
Which data model provides the simplest solution to meet the requirements?

Assuming that 'name; is a String obtained by an <apex:inputText> tag on a Visualforce page.
Which two SOQL queries performed are safe from SOQL injections? Choose 2 answers