Free Practice Questions for Salesforce PDI Exam

To create and manage scratch orgs in Salesforce DX, the Dev Hub must be enabled in your Salesforce production or Developer Edition org. Dev Hub acts as the central hub for managing scratch orgs.

Allow Reparenting in Master-Detail Relationships:

In a master-detail relationship, the child record (in this case, OrderItem) is tightly bound to the parent record (Order).

By default, child records cannot be reassigned to a different parent record in master-detail relationships. However, enabling the"Allow Reparenting"option on the master-detail field allows the child record (OrderItem) to be reparented to a different master record (Order).

This is the correct solution as it ensures that OrderItem records can be reassigned to a new Order without changing the structure of the relationship.

Why not the other options?

A. Add without sharing to the Apex class declaration:

Adding without sharing modifies sharing rules but does not affect the ability to reparent child records. This is unrelated to the issue described.

B. Change the master-detail relationship to an external lookup relationship:

Changing the relationship type is not necessary. Additionally, doing so could introduce unintended side effects, as master-detail relationships have features like roll-up summaries that are lost with a lookup relationship.

C. Create a junction object between OrderItem and Order:

Introducing a junction object is not required. This adds unnecessary complexity and deviates from the intended use of master-detail relationships.

Upload the SVG file as astatic resourcein Salesforce.

Import it in the LWC JavaScript file and define it as a property.

Reference the property in the component’s HTML template.

Example:

importmySvgfrom'@salesforce/resourceUrl/mySvg';

exportdefaultclassMyComponentextendsLightningElement{

svgUrl = mySvg;

}

Lightning Web Components Static Resources

A master-detail relationship fromEngineering_Support__ctoOpportunityallows multiple childEngineering_Support__crecords to be associated with a single parentOpportunity. It also enables roll-up summary fields to aggregate data from the child records onto the parentOpportunity.

Why Change Sets?

Change Sets are the recommended and simplest way to deploy metadata, including Apex code and Lightning Components, from Sandbox to Production.

Why Not Other Options?

A: The Force.com IDE is deprecated.

B: The Ant Migration Tool is more suitable for complex deployments but not necessary for standard Sandbox-to-Production migration.

D: Salesforce CLI is effective for deployment but requires scripting expertise, making Change Sets easier for most users.

Before-save Apex Trigger:

This is the best solution because abefore-save triggerruns before the record is saved to the database, providing an opportunity to validate or modify the data.

In this case, the Apex trigger can validate the email address using a regular expression or a third-party API call to ensure the email address is valid. If the email is invalid, an error message can be displayed using addError().

Why not the other options?

A. Submit a REST API Callout with a JSON payload:

REST callouts are more complex and generally not recommended for simple validation tasks like email format validation. Additionally, callouts cannot be performed directly in a before-save trigger.

C. Use a custom Lightning Web Component (LWC):

LWCs are primarily for UI interactions and should not be used to enforce data validations that are server-side requirements.

D. Use an Approval Process:

Approval Processes are for managing the approval flow of records, not for real-time validations. They cannot enforce email validation directly.

75% Code Coverage (A):To deploy Apex code to production, Salesforce requires at least 75% of the code to be covered by tests across the organization.

The variableisOKis declared but not initialized, so its value isnull. Theif-elseconditions check for specific values ofisOK(trueorfalse), but since it isnull, none of those conditions are satisfied. The program defaults to theelseblock, assigning4tox.

Database.insert(records, false):

The Database.insert() method with the allOrNone parameter set to false allows for partial success.

If some records in the list fail due to validation rules, triggers, or other errors, the method will still attempt to insert the remaining valid records.

The false parameter ensures that records that fail will not roll back the transaction for the others.

Why not the other options?

A. Database.insert(records, true):

The true parameter makes the operation transactional (all or none). If any record fails, all records will roll back.

B. insert records:

The insert DML statement behaves like Database.insert(records, true) by default and rolls back all records if any error occurs.

C. insert(records, false):

This syntax is invalid in Apex.

Why a Trigger on the Child Object?

Since the relationship is not master-detail, a trigger on the child object can perform aggregate calculations and update the parent Opportunity.

Why Not Other Options?

A: Tree sorting is unnecessary and unrelated to roll-up summaries.

B and D: Neither Streaming API nor Metadata API is suitable for real-time roll-up calculations.