PDI Salesforce Certified Platform Developer (Plat-Dev-201) Free Practice Exam Questions (2025 Updated)

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.

In the provided code snippet, the classmyClassdoes not specify a sharing declaration (with sharingorwithout sharing). In Salesforce, when a class does not explicitly declare its sharing context, it defaults towithout sharing. This means sharing rules are not enforced.

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.

Comprehensive and Detailed Explanation From Exact Extract:

In Lightning Web Components, to cache the results of Apex methods on the client side, the Apex method should be annotated with @AuraEnabled(cacheable=true). This enables the Lightning Data Service to cache the method's response, improving performance by reducing server calls.

Comprehensive and Detailed Explanation From Exact Extract:

By default, Apex tests run in a system context that does not respect sharing rules. However, the getAllAccounts method is defined in a with sharing class, so it does respect sharing rules. Therefore, to correctly simulate how a Standard User would see the data, the test must be run in the context of that user.

To do this, the developer should use System.runAs() to switch the test context to the Standard User, ensuring that sharing rules are enforced for the user running the test. This allows the test to correctly verify the data the user can access.

Example of Corrected Test Method:

apex

CopyEdit

@isTest

private static void getAllAccounts_StandardUser_Test() {

User standardUser = [SELECT Id FROM User WHERE Profile.Name = 'Standard User' AND UserName = 'test@test.com' AND isActive = true LIMIT 1];

System.runAs(standardUser) {

List result = AccountsController.getAllAccounts();

System.assertEquals(20, result.size());

}

}

Based on the provided code, an exception is likely being thrown if a required field is missing or if there are validation rules that the record does not meet. Salesforce will throw an exception when an attempt to create a record violates constraints.

Why not other options?

B: Salesforce reports errors for failed DML operations unless they are handled in atry-catchblock.

C: The record cannot be created successfully if constraints are violated.

D: Debug logs may provide details, but the record creation would fail.

Apex DML Exception Handling

Why Data Export Scheduled Job?

Salesforce provides an out-of-the-boxData Exportfeature that allows organizations to back up their data, including attachments.

This feature can be scheduled to run automatically on a monthly basis, fulfilling the requirement.

Why Not Other Options?

A. Schedule a Report: Does not export attachments and is limited to reportable data.

B. Data Loader Command Line: Requires manual setup and scripting, which is unnecessary for this requirement.

D. Create a Schedulable Apex class: Not suitable, as the Data Export tool is more efficient for full data and attachment backup.

Why Create Records Element?

TheCreate Recordselement adds the functionality to create a Contact record.

The Contact’s ID can then be stored on the Opportunity using a variable or field update.

Why Not Other Options?

A:Update Recordsis for updating existing records, not creating new ones.

B:Roll Back Recordsis used for rolling back transactions, not for creating records.

D:Get Recordsretrieves records but does not create them.

Option B: To update a junction object, the user needsRead/Writeaccess to the primary relationship object.

Option C: The user must also haveRead/Writeaccess on the junction object itself.

Junction Objects Documentation

A. Junction object between Applicant and Job:

Since anApplicantcan apply for multipleJobsand eachJobcan have multipleApplicants, this is amany-to-many relationship.

Salesforce requires ajunction objectto represent many-to-many relationships. The junction object will have two master-detail relationships: one to the Applicant object and one to the Job object.

The junction object could be named something like JobApplication__c, which would represent the specific instance of an applicant applying for a particular job.

Why this is the correct approach?

A junction object allows for robust data management and reporting capabilities in a many-to-many relationship.

This design ensures that each combination of applicant and job is captured as a unique record in the JobApplication__c junction object.

It also allows storing additional details about the application, such as application date, status, and feedback.

Why not the other options?

B. Lookup field from Applicant to Job:

A lookup field creates a one-to-many relationship. While an Applicant could reference one Job, it does not support the many-to-many relationship required in this scenario.

C. Master-detail field from Applicant to Job:

A master-detail relationship is a one-to-many relationship, which is unsuitable for a many-to-many relationship. Additionally, you cannot have two master-detail fields on a single object to connect Applicant and Job directly.

D. Formula field on Applicant that references Job:

A formula field cannot establish relationships between records or represent a many-to-many relationship. It is only for computed fields.

C. Update the PrimaryId__c field definition to mark it as an External Id:

Marking PrimaryId__c as anExternal Idallows Salesforce to use this field to match records during the data import process, streamlining the process of mapping CSV rows to existing Candidate__c records.

External Id fields are indexed and can be used in tools likeData Loader,Data Import Wizard, orAPI-based upsertsto ensure that records are matched correctly based on the value of the external ID field.

In this case, since PrimaryId__c is unique, marking it as an external ID eliminates the need for custom triggers or flows.

Why this is the best solution?

This technique leverages built-in Salesforce capabilities (no need for custom code or automation).

It ensures accurate record matching and is the standard approach for data enrichment tasks involving unique identifiers.

Why not the other options?

A. Upload the CSV into a custom object related to Candidate__c:

This approach unnecessarily introduces another object, adding complexity. The goal is to update existing Candidate__c records, not store the data in a separate object.

B. Create a before insert trigger to correctly map the records:

Using triggers for this purpose is overengineering. Salesforce already provides tools likeupsertfor this exact use case. Writing a trigger would require additional effort and could introduce unintended errors or performance issues.

D. Create a before save flow to correctly map the records:

While flows are powerful, they are not the optimal solution for this use case. Data mapping is better handled using an external ID during import to ensure proper matching and updates.

Why Quick Actions?

Quick Actions allow developers to create prepopulated forms for creating or updating records.

They are a modern alternative to JavaScript buttons in Lightning Experience.

Why Not Other Options?

A: Validation rules enforce data integrity but do not create records.

B: Apex triggers automate processes but are not used for user-initiated actions.

C: Record-triggered flows execute automatically when records are created or updated, but they do not replace JavaScript buttons for user-initiated actions.

Why@TestSetup?

The@TestSetupannotation creates a baseline set of test data once per test class.

Test methods reuse this data, avoiding the need to recreate it repeatedly, which improves efficiency.

Why Not Other Options?

A: HttpCalloutMock is used for mocking callouts, not for creating test data.

C: UsingseeAllData=trueis discouraged because it relies on org data, violating test isolation principles.

D: While creating data inTest.startTest()works, it is less efficient than@TestSetupfor shared data.

Many-to-Many Relationship:

To track which companies (Accounts) report which bugs and allow multiple associations for both, ajunction objectis needed.

This junction object will have two master-detail relationships: one toBug__cand one toAccount.

Why Not Other Options?

A. Roll-up summary field: Not suitable for many-to-many relationships.

B. Master-detail field on Bug__c to Account: Creates a one-to-many relationship, not many-to-many.

C. Lookup field on Bug__c to Account: Still creates a one-to-many relationship, not many-to-many.

Order of Execution Rules:

Step 1: Original record is loaded from the database.

Step 2: Field-level validations are performed, including maximum field lengths.

Step 3: Old values are overwritten with new record values.

Step 4: JavaScript validation runs in the browser.

The Lightning component cannot directly perform SOQL queries.

An Apex class annotated with@AuraEnabledprovides server-side logic that can execute the SOQL query and return the data to the Lightning component.

Apex AuraEnabled Methods

Marking the field as required on the field definition ensures that the field is always populated during record creation or update. This enforces the rule at the database level.

Other Options:

Option A: Setting a default value ensures a value is present initially but does not enforce a value during updates.

Option B: Writing a trigger is less efficient and adds unnecessary complexity.

Option C: Marking the field as required on the page layout is UI-specific and does not enforce the rule during API or code-based operations.

Field Level Requirements

The quickest way to make Visualforce pages styled like Lightning Experience is by incorporating SLDS. This provides consistent styling without rewriting the applications.

Why not other options?

A: Rewriting all Visualforce pages as Lightning components is time-consuming and not efficient.

B: There is no attributeenableLightningin Visualforce.

C: Enabling Lightning Experience compatibility does not apply styling automatically.

Salesforce Lightning Design System (SLDS)

Option A: Governor limits are reset for each execution of theexecute()method in a batch job because each batch is treated as a separate transaction.

Option C: Batch jobs use asynchronous governor limits, which are higher than synchronous limits.

Apex Governor Limits Documentation