SALESFORCE DEX-450 LATEST EXAM CAMP | DEX-450 VALID EXAM VCE

Salesforce DEX-450 Latest Exam Camp | DEX-450 Valid Exam Vce

Salesforce DEX-450 Latest Exam Camp | DEX-450 Valid Exam Vce

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q123-Q128):

NEW QUESTION # 123
Which two statements can a developer use to throw a custom exception of type MissingFieldValueException? Choose 2 answers.

  • A. Throw (MissingFieldValueException, 'Problem occurred');
  • B. Throw Exception (new MissingFieldValueException());
  • C. Throw new MissingFieldValueException ('Problem occurred');
  • D. Throw new MissingFieldValueException();

Answer: C,D


NEW QUESTION # 124
What are two benefits of using External IDs?
Choose 2 answers

  • A. An External ID can be a formula field to help create a unique key from two fields in Salesforce.
  • B. An External ID field can be used Co reference an ID from another external system.
  • C. An External ID is indexed and can improve the performance of SOQl quenes.
  • D. An External ID can be used with Salesforce Mobile to make external data visible.

Answer: B,C


NEW QUESTION # 125
Which actions can a developer perform using the Schema Builder?Choose 2 answers

  • A. Create a view of objects and relationships without fields
  • B. Create a view containing only standard and system objects.
  • C. Create a custom object and define a lookup relationship on that object
  • D. Create a custom field and automatically add it to an existing page layout.

Answer: B,C


NEW QUESTION # 126
A developer needs to have records with specific field values in order to test a new Apex class.
What should the developer do to ensure the data is available to the test?

  • A. Use Test.loadData() and reference a CSV file in a static resource.
  • B. Use SOQL to query the org for the required data.
  • C. Use Anonymous Apex to create the required data.
  • D. Use test.loadData() and reference a JSON file in Documents.

Answer: A

Explanation:
To ensure that specific data is available in test methods, the developer should create test data within the test context.
Option B: Use Test.loadData() and reference a CSV file in a static resource.
Correct Approach.
Test.loadData() is a method that allows test methods to load test data from a CSV file stored as a static resource.
This method creates the records in the test context, ensuring that the data is available during the test execution.
Using a CSV file makes it easy to define multiple records with specific field values.
Usage Example:
@isTest
private class MyTestClass {
@isTest
static void testMethod() {
List<MyObject__c> testRecords = (List<MyObject__c>) Test.loadData(MyObject__c.sObjectType, 'MyTestData');
// Proceed with testing using testRecords
}
}
Where 'MyTestData' is the name of the static resource containing the CSV file.
Test.loadData() does not support loading data from JSON files or from the Documents object.
It uses CSV files stored as static resources.
Option C: Use Anonymous Apex to create the required data.
Not Effective for Testing.
Data created via Anonymous Apex is not available in test methods due to data isolation.
Test methods operate in their own context and cannot access data created outside the test unless SeeAllData=true is used, which is discouraged.
Option D: Use SOQL to query the org for the required data.
Not Recommended.
Test methods should not rely on existing org data.
Tests should create their own data to ensure consistency and avoid dependencies.
Using SeeAllData=true is discouraged.
Conclusion:
To ensure that records with specific field values are available in the test, the developer should use Test.loadData() with a CSV file stored in a static resource.
Therefore, Option B is the correct answer.
Reference:
Test.loadData() Method
Static Resources
Options Not Suitable:
Option A: Use test.loadData() and reference a JSON file in Documents.
Incorrect.


NEW QUESTION # 127
A developer created a trigger on a custom object. This custom object also has some dependent pick lists.
According to the order of execution rules, which step happens first?

  • A. Old values are overwritten with the new record values,
  • B. JavaScript validation is run In the browser.
  • C. The original record is loaded from the database.
  • D. System validation is run for maximum field lengths.

Answer: B


NEW QUESTION # 128
......

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