A primaryid_c custom field exists on the candidate_c custom object. The filed is used to store each candidate's id number and is marked as Unique in the schema definition.
As part of a data enrichment process. Universal Containers has a CSV file that contains updated data for all candidates in the system, the file contains each Candidate's primary id as a data point. Universal Containers wants to upload this information into Salesforce, while ensuring all data rows are correctly mapped to a candidate in the system.
Which technique should the developer implement to streamline the data upload?

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?

AW Computing tracks order information in custom objects called order__c and order_Line_ c - Currently, all shipping information is stored in the order__c object.
The company wants to expand Its order application to support split shipments so that any number of order_Line__c records on a single order__c can be shipped to different locations.
What should a developer add to fulfill this requirement?

When the value of a field of an account record is updated, which method will update the value of a custom field opportunity? Choose 2 answers.

A developer has the following code block:
public class PaymentTax {public static decimal SalesTax = 0.0875;} trigger OpportunityLineItemTrigger on OpportunityLineItem (before insert, before update) {PaymentTax PayTax = new PaymentTax();decimal ProductTax = ProductCost * XXXXXXXXXXX;} To calculate the productTax, which code segment would a developer insert at the XXXXXXXXXXX to make the value the class variable SalesTax accessible within the trigger?