A developer identifies the following triggers on the Expense__c object:

The triggers process before delete, before insert, and before update events respectively.
Which two techniques should the developer implement to ensure trigger best practices are followed?
Choose 2 answers

In Lightning component framework, which resource can be used to fire events? Choose 2 answers.

Which code in a Visualforce page and/or controller might present a security vulnerability?

An org tracks customer orders on an Order object and the items of an Order on the Line Item object. The Line Item object has a MasterDetail relationship to the order object. A developer has a requirement to calculate the order amount on an Order and the line amount on each Line item based on quantity and price.
What is the correct implementation?

When importing and exporting data into Salesforce, which two statements are true?
Choose 2 answers