PDI Questions and Answers

Question # 1

Managers at Universal Containers want to ensure that only decommissioned containers are able to be deleted in the system. To meet the business requirement a Salesforce developer adds "Decommissioned” as a picklist value for the status__c custom field within the Container__c object.

Which two approaches could a developer use to enforce only Container records with a status of "Decommissioned” can be deleted?

Choose 2 answers

Apex trigger

validation rule

After record-triggered flow

Before record-triggered flow

Question # 2

A developer created these three Rollup Summary fields in the custom object, project_ c:

The developer is asked to create a new field that shows the ratio between rejected and approved timesheets for a given project.

Which should the developer use to implement the business requirement in order to minimize maintenance overhead?

Apex trigger

Roll-up summary field

Formula field

Record-triggered flow

Question # 3

What are three characteristics of change set deployments?

Choose 3 answers

Change sets can deploy custom settings data.

Change sets can be used to transfer records.

Deployment is done in a one-way, single transaction.

Sending a change set between two orgs requires a deployment connection.

Change sets can only be used between related organization

Answer:

C, D, E

Explanation:

Change Sets are a point-and-click tool for migrating metadata between related Salesforce orgs, such as from a sandbox to a production org.

Option C: Deployment is done in a one-way, single transaction.

Correct.

Explanation:

Change sets are deployed in a one-way direction from the source org to the destination org.

The deployment occurs in a single transaction. If any component fails to deploy, the entire deployment is rolled back.

[Reference:, Deploy Change Sets, Option D: Sending a change set between two orgs requires a deployment connection., Correct., Explanation:, Before deploying a change set, you must set up a deployment connection between the source and destination orgs., This connection is established through the Setup menu under Deployment Connections., Reference:, Create Deployment Connections, Option E: Change sets can only be used between related organizations., Correct., Explanation:, Change sets can only be sent between orgs that are affiliated, such as a sandbox and its production org, or sandboxes that are clones of the same production org., They cannot be used between unrelated orgs., Reference:, Change Sets Overview, Incorrect Options:, Option A: Change sets can deploy custom settings data., Incorrect., Explanation:, Change sets can deploy the metadata of custom settings (the definition), but not the actual data stored within them., To move custom settings data, you must use a data migration tool like Data Loader., Reference:, Change Set Considerations, Option B: Change sets can be used to transfer records., Incorrect., Explanation:, Change sets are designed to transfer metadata components, not data records., To transfer data records, use tools like Data Loader or Data Import Wizard., Reference:, Deploy Metadata with Change Sets, Conclusion:, The three characteristics of change set deployments are C, D, and E., ]

Question # 4

Universal Containers (UC) processes orders in Salesforce in a custom object, ord=xr <. They also allow sales reps to upload CSV files with thousands of orders at a time.

A developer is tasked with integrating orders placed in Salesforce with UC’s enterprise resource planning (ERP) system.

After the status for an order__ c is first set to 'Placed’, the order information must be sent to a REST endpoint in the ERP system that can process one order at a time.

What should the developer implement to accomplish this?

Callout from an Qfuture method called from a trigger

Callout from a Batchable class called from a scheduled job

Flow with a callout from an invocable method

Callout from a Queueable class called from a trigger

Answer:

Explanation:

To integrate Order__c records with the ERP system after their status is set to 'Placed', and considering that orders may be uploaded in bulk, the developer should:

Option D: Callout from a Queueable class called from a trigger

Explanation:

Trigger: Implement an after-update trigger on Order__c to detect when the status changes to 'Placed'.

Queueable Apex: Use Queueable Apex to handle asynchronous processing and callouts. Queueable classes support callouts by implementing the Database.AllowsCallouts interface.

Benefits:

Handles Bulk Data: Queueable Apex can process records in batches and can be chained for processing large volumes.

Supports Callouts: Unlike future methods, Queueable Apex allows for more complex data types and supports callouts with fewer limitations.

[:, "To make a Web service callout to an external service or API, you must use asynchronous Apex, such as future methods, Queueable Apex, or batch Apex.", "Queueable Apex is an asynchronous Apex feature that is a superset of future methods with some extra features."— Apex Developer Guide: Queueable Apex, Why Other Options Are Incorrect:, Option A: Callout from an @future method called from a trigger, @future methods have limitations, such as accepting only primitive types as parameters and a limit of 50 calls per transaction, which can be exceeded when processing thousands of records., Reference:, "Methods with the future annotation must be static methods and can only return a void type. The specified parameters must be primitive data types, arrays of primitive data types, or collections of primitive data types."— Apex Developer Guide: Future Methods, Option B: Callout from a Batchable class called from a scheduled job, Batch Apex is not immediately triggered by record changes and may not meet the requirement of processing the order after the status changes., Scheduling adds delay and complexity unnecessary for this use case., Option C: Flow with a callout from an invocable method, Flows invoked from triggers (record-triggered flows) cannot perform callouts unless they are configured to run asynchronously, and managing bulk operations with flows can be less efficient., ]

Question # 5

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?

The deployment falls because no assertions were made in the test method.

The deployment passes because both classes and the trigger were included in the deployment.

The deployment fails because the Apex trigger has no code coverage.

The deployment passes because the Apex code has the required =75% code coverage.

Answer:

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.

[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., Explanation: While assertions are important for validating test results, the absence of assertions does not cause deployment failure due to code coverage issues., Reference: Apex Developer Guide - Writing Effective Unit Tests, Conclusion: Incorrect., , Option B:, Statement: The deployment passes because both classes and the trigger were included in the deployment., Explanation: Inclusion of classes and triggers in the deployment does not override the requirement for individual code coverage., Conclusion: Incorrect., , Option C:, Statement: The deployment fails because the Apex trigger has no code coverage., Explanation: This is accurate as the trigger must have some coverage, and in this case, it has 0%., Reference: Apex Developer Guide - Code Coverage Requirements, Conclusion: Correct., , Option D:, Statement: The deployment passes because the Apex code has the required 75% code coverage., Explanation: Although overall code coverage is above 75%, individual triggers must have some coverage (>0%). Since the trigger has 0% coverage, the deployment fails., 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 Testing Best Practices, ]

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