CRT-450 Exam Dumps - Salesforce Developers Questions and Answers

Option C: Handle low-level events in the event handler and re-fire them as higher-level events.

True.

Explanation:

It's a best practice to encapsulate lower-level events and re-emit them as higher-level, application-specific events to decouple components and simplify event handling.

The accurate statements about debug logs are:

Option A: System debug logs are retained for 24 hours.

Explanation: Salesforce retains debug logs for 24 hours after they are generated.

Option A: Data Import Wizard does not support Opportunities.

Explanation: The Data Import Wizard supports importing data for certain standard objects (Accounts, Contacts, Leads, Solutions, Campaign Members, and Person Accounts) and custom objects. It does not support importing data into all standard objects like Opportunities.

Unit tests in Salesforce are designed to test Apex code functionality and can execute certain operations within the testing context.

Option C: Generate a Visualforce PDF with getContentAsPDF

Explanation: In unit tests, you can generate a PDF from a Visualforce page using the getContentAsPDF() method. This is allowed within test methods and is a valid operation for unit testing.

Declarative customizations in Salesforce refer to point-and-click configurations made through the Salesforce UI, such as creating objects, fields, workflows, and processes.

Option C: Declarative customizations automatically update with each Salesforce release.

True.

Explanation:

Declarative features are managed by Salesforce and are automatically updated and enhanced with each new release.

Users benefit from new features without needing to modify existing configurations.

Option C: Developer Sandbox

Correct Answer.

Explanation:

Developer Sandboxes are intended for coding and testing by a single developer.

They copy all application and configuration information from production, ensuring the same metadata.

Each developer can work in their own isolated environment.

To add an additional layer of validation for email addresses on Lead records by using automation and possibly an external validation service, the best solution is to use a custom Lightning Web Component (LWC).

Option C: Use a custom Lightning Web Component to make a callout to validate the fields on a third-party system

Real-Time Validation: An LWC can perform client-side validation and make callouts to external systems to validate the email address as the user inputs data.

User Experience: Provides immediate feedback to the user, improving data quality at the point of entry.

Limitations: This solution works when data is entered through the UI using the LWC component.

To calculate the sum of all Order Line item totals on the Order record in a master-detail relationship, the best practice is to use a Roll-up Summary Field.

Roll-up Summary Field: This field type allows you to perform calculations on a set of related records, such as summing up the total price of all Order Line items related to an Order.

"Roll-up summary fields allow you to display a value in a master record based on the values of fields in a detail record."— Salesforce Help: Define Roll-Up Summary Fields

Master-Detail Relationship: Since Order Line items are in a master-detail relationship with Orders, roll-up summary fields can be created on the master object (Order) to summarize data from the detail object (Order Line).

"You can create roll-up summary fields on any custom object that is on the master side of a master-detail relationship."— Salesforce Developer Guide: Roll-Up Summary Fields

Why Not Other Options:

A. Quick Action: Quick actions are used to create records, log calls, send emails, etc., and are not suitable for calculating and displaying aggregate data.

B. Apex Trigger: While triggers can perform the calculation, using them for this purpose is not considered best practice when declarative solutions like roll-up summary fields are available.

"Use declarative functionality (roll-up summary fields) for maintaining aggregates instead of triggers."— Salesforce Developer Guide: Best Practices for Triggers

D. Formula Field: Formula fields cannot aggregate data from child records to parent records unless they are part of a roll-up summary field in a master-detail relationship.

Conclusion: Using a roll-up summary field is the most efficient and recommended approach to sum the total prices of all Order Line items on the Order record.

To write unit tests for a private method in an Apex class:

Option C: Use the @TestVisible annotation.

Explanation: The @TestVisible annotation allows test methods to access private methods and variables in Apex classes. By annotating the private method with @TestVisible, it becomes accessible within test classes.

Example:

public class MyClass {

@TestVisible

private static void myPrivateMethod() {

// Implementation

}

}