A lead object has a custom field Prior_Email__c. The following trigger is intended to copy the current Email into the Prior_Email__c field any time the Email field is changed:

Which type of exception will this trigger cause?

The following Apex method is part of the ContactService class that is called from a trigger: public static void setBusinessUnitToEMEA(Contact thisContact){ thisContact.Business_Unit__c = "EMEA" ; update thisContact; } How should the developer modify the code to ensure best practice are met?

A developer has a single custom controller class that works with a Visualforce Wizard to support creating and editing multiple sObjects. The wizard accepts data from user inputs across multiple Visualforce pages and from a parameter on the initial URLWhich statement is unnecessary inside the unit test for the custom controller?

Which option should a developer use to create 500 Accounts and make sure that duplicates are not created for existing Account Sites?

Which three process automations can immediately send an email notification to the owner of an Opportunity when its Amount is changed to be greater than $10,000? Choose 3 answers