A company decides that every time an Opportunity is created, they want to create a follow up Task and assign it to the Opportunity Owner.
What should a developer use to implement the requirements?

A developer has built a multi-page wizard using a single Custom Controller to query and update dat
a. Users are complaining that the pages are loading slowly.
What will improve performance? (Choose three.)

A developer receives an error when trying to call a global server-side method using the @remoteAction decorator. How can the developer resolve the error?

Trigger on Contact ensures that whenever a Contact's custom field "User Level" is given the value "President," the related Community User's Role is updated as Manager. The Apex unit test method for testing this functionality is failing for a mixed DML error. What is one way that this problem can be solved?

A large company uses Salesforce across several departments. Each department has its own Salesforce Administrator. It was agreed that each Administrator would have their own sandbox in which to test changes. Recently, users notice that fields that were recently added for one department suddenly disappear without warning. Also, Workflows that once sent emails and created tasks no longer do so. Which two statements are true regarding these issues and resolution? Choose 2 answers