DEX-450 TEST TORRENT IS VERY EASY FOR YOU TO SAVE A LOT OF TIME TO PASS PROGRAMMATIC DEVELOPMENT USING APEX AND VISUALFORCE IN LIGHTNING EXPERIENCE EXAM - PASS4LEADER

DEX-450 Test Torrent is Very Easy for You to Save a Lot of Time to pass Programmatic Development using Apex and Visualforce in Lightning Experience exam - Pass4Leader

DEX-450 Test Torrent is Very Easy for You to Save a Lot of Time to pass Programmatic Development using Apex and Visualforce in Lightning Experience exam - Pass4Leader

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Salesforce DEX-450 is a certification exam that validates the skills of professionals in programmatic development using Apex and Visualforce in the Lightning Experience. Programmatic Development using Apex and Visualforce in Lightning Experience certification is ideal for developers who want to demonstrate their mastery of the Salesforce platform and their ability to customize and extend Salesforce applications using Apex and Visualforce. The Salesforce DEX-450 certification exam is designed to test the developer's knowledge of Apex programming language, Visualforce markup language, and Lightning Component Framework. Developers who Pass DEX-450 Exam can prove their expertise in developing custom applications, automating business processes, and integrating Salesforce with other systems.

Salesforce DEX-450 exam is a part of the Salesforce Certified Platform Developer II certification track. Programmatic Development using Apex and Visualforce in Lightning Experience certification is a recognition of a developer's advanced knowledge and skills in programmatic development on the Salesforce platform. To earn this certification, developers must pass two exams: the Salesforce Certified Platform Developer I and the Salesforce DEX-450 exam.

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q174-Q179):

NEW QUESTION # 174
A developer created this Apex trigger that calls MyClass.myStaticMsthod:

The developer creates a test class with a test method that calls Myclass.myStacicMethod directly, resulting in 81% overall code coverage.
What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exists?
What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exists?

  • A. The deployment passes because the Apex code has the required =75% code coverage.
  • B. The deployment passes because both classes and the trigger were included in the deployment.
  • C. The deployment fails because the Apex trigger has no code coverage.
  • D. The deployment falls because no assertions were made in the test method.

Answer: C

Explanation:
Understanding the Scenario:
Trigger Definition:
trigger myTrigger on Contact (before insert) {
MyClass.myStaticMethod(trigger.new);
}
Test Class:
The test method calls MyClass.myStaticMethod directly.
Achieves 81% overall code coverage.
The trigger is not invoked during the test.
Key Points:
Code Coverage Requirements:
Minimum 75% Coverage: To deploy Apex code to production, all Apex classes and triggers must have at least 75% overall code coverage.
Trigger Coverage Requirement: All triggers must have some code coverage, meaning they cannot have 0% coverage.
Conclusion: Incorrect.
Option C:
Statement: The deployment fails because the Apex trigger has no code coverage.
Conclusion: Incorrect.
Best Practices:
Always Test Triggers: Ensure that your test methods perform operations that fire the triggers.
Example:
@isTest
public class MyTriggerTest {
static testMethod void testMyTrigger() {
Contact testContact = new Contact(LastName = 'Test');
insert testContact;
// Additional assertions can be added here
}
}
Use Assertions: While not causing deployment failure due to code coverage, assertions help validate that the code behaves as expected.
Reference:
Apex Developer Guide - Code Coverage
Deployment Guidelines
Implications for the Scenario:
Trigger Coverage:
Since the test method does not perform any operations that would fire the trigger (e.g., inserting a Contact record), the trigger myTrigger has 0% code coverage.
Overall Coverage:
Even though the classes achieve 81% coverage, the trigger's lack of coverage affects the deployment.
Deployment Outcome:
Deployment Fails: Because the trigger has 0% coverage, the deployment fails regardless of the overall coverage percentage.
Option Analysis:
Option A:
Statement: The deployment fails because no assertions were made in the test method.
Conclusion: Incorrect.
Option B:
Statement: The deployment passes because both classes and the trigger were included in the deployment.
Conclusion: Correct.
Option D:
Statement: The deployment passes because the Apex code has the required 75% code coverage.


NEW QUESTION # 175
A developer is designing a new application on the Salesforce platform and wants to ensure it can support multiple tenants effectively.
Which design framework should the developer consider to ensure scalability and maintainability?

  • A. Agile Development
  • B. Model-View-Controller (MVC)
  • C. Waterfall Model
  • D. Flux (view, action, dispatcher, and store)

Answer: A


NEW QUESTION # 176
What can be easily developed using the Lightning Component framework?