A developer has a VF page and custom controller to save Account records. The developer wants to display any validation rule violation to the user. How can the developer make sure that validation rule violations are displayed?

A developer has a requirement to create an Order When an Opportunity reaches a "Closed-Won" status.
Which tool should be used to implement this requirement?

Universal Containers wants Opportunities to no longer be editable when it reaches the Closed/Won stage.
Which two strategies can a developer use to accomplish this?
Choose 2 answers

A Visual Flow uses an apex Action to provide additional information about multiple Contacts, stored in a custom class, contactInfo. Which is the correct definition of the Apex method that gets additional information?

n org has an existing flow that creates an Opportunity with an Update Records element. A developer must update the flow to aiso create a 'Contact and store the created Contact's 1D on the Opportunity.
Which update must the developer make in the flow?