Free DEX-450 Exam Braindumps
Programmatic Development using Apex and Visualforce in Lightning Experience Questions 126–130 (page: 27)

Which Apex collection is used to ensure that all values are unique?

Which actions can a developer perform using the Schema Builder?Choose 2 answers

A developer executes the following code in the Developer Console:
List<Account> fList = new List <Account> ();
For(integer i= 1; I <= 200; i++)
{
fList.add(new Account ( Name = `Universal Account ` + i));
}
Insert fList;
List <Account> sList = new List<Account>();
For (integer I = 201; I <= 20000; i ++){
sList.add(new Account (Name = `Universal Account ` + i));
}
Insert sList;

How many accounts are created in the Salesforce organization ?

A developer creates an Apex Trigger with the following code block:
List<Account> customers = new List<Account>();
For (Order__c o: trigger.new)
{
Account a = [SELECT Id, Is_Customer__c FROM Account WHERE Id =:o.Customer__c];a.Is_Customer__c = true;
customers.add(a);
}
Database.update(customers, false);

The developer tests the code using Apex Data Loader and successfully loads 10 Orders. Then, the developer loads 150 Orders.How many Orders are successfully loaded when the developer attempts to load the 150 Orders?

What is a benefit of the Lightning Component framework?Choose 3 answers