DEX-450 Exam Question 1

A developer must modify the following code snippet to prevent the number of SOQL queries issued from exceeding the platform governor limit. public class without sharing OpportunityService( public static List<OpportunityLineItem> getOpportunityProducts(Set<Id> opportunityIds){ List<OpportunitylineItem> oppLineItems = new List<OpportunityLineItem>(); for(Id thisOppId : opportunityIds){ oppLineItems.addAll([Select Id FROM OpportunityLineItems WHERE OpportunityId = :thisOppId)]; } return oppLineItems; } } The above method might be called during a trigger execution via a Lightning component. Which technique should be implemented to avoid reaching the governor limit?
  • DEX-450 Exam Question 2

    In the Lightning UI, where should a developer look to find information about a Paused Flow Interview?
  • DEX-450 Exam Question 3

    When a user edits the Postal Code on an Account, a custom Account text field named ''Timezone'' must be updated based on the values in a postalCodeToTimezone_c custom object.
    What should be built to implement this feature?
  • DEX-450 Exam Question 4

    Since Aura application events follow the traditional publish-subscribe model, which method is used to fire an event?
  • DEX-450 Exam Question 5

    A developer created a custom order management app that uses an Apex class. The order is represented by an Order object and an Orderltem object that has a master-detail relationship to Order. During order processing, an order may be split into multiple orders.
    What should a developer do to allow their code to move some existing Orderltem records to a new Order record?