Salesforce PDI Online Practice Questions and Exam Preparation

Salesforce PDI Online Questions & Answers

• Question 1:

  Cloud Kicks has a multi-screen flow that its call center agents use when handling inbound service desk calls.

  At one of the steps in the flow, the agents should be presented with a list of order numbers and dates that are retrieved from an external order management system in real time and displayed on the screen.

  What should a developer use to satisfy this requirement?

  A. An outbound message
  B. An Apex REST class
  C. An Apex controller
  D. An invocable method
  B. An Apex REST class

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  Explanation

  An Apex REST class should be used because the flow needs to retrieve data from an external system in real time and display it to agents during the flow execution. Apex REST supports synchronous HTTP callouts, allowing the flow to request order information and immediately receive order numbers and dates for display. Outbound messages are asynchronous and one-way, Apex controllers are intended for Visualforce or Lightning components rather than Flow integrations, and invocable methods cannot directly perform external callouts without using Apex REST.

• Question 2:

  While developing an Apex class with custom search functionality that will be launched from a Lightning Web Component, how can the developer ensure only records accessible to the currently logged in user are displayed?

  A. Use the WITH SECURITY_ENFORCED clause within the SOQL.
  B. Use the inherited sharing keyword.
  C. Use the with sharing keyword.
  D. Use the without sharing keyword.
  C. Use the with sharing keyword.

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  Explanation

  Declaring the Apex class with with sharing ensures that record-level access rules, including organization-wide defaults, role hierarchy, and sharing rules, are enforced so that only records accessible to the currently logged-in user are returned. WITH SECURITY_ENFORCED applies to CRUD and FLS checks rather than record sharing, inherited sharing depends on the caller context and is not guaranteed, and without sharing explicitly bypasses record-level security.

• Question 3:

  What are two characteristics related to formulas? Choose 2 answers

  A. Formulas are calculated at runtime and are not stored in the database.
  B. Formulas can reference themselves.
  C. Formulas can reference values in related objects.
  D. Fields that are used in a formula field can be deleted or edited without editing the formula.
  A. Formulas are calculated at runtime and are not stored in the database.
  C. Formulas can reference values in related objects.

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  Explanation

  A: Formula fields are calculated at runtime based on the formula definition and are not stored in the database.

  C: Formula fields can reference fields from related objects, allowing cross-object calculations.

  Why not other options?

  B: Formulas cannot reference themselves; doing so would result in a circular reference error.

  D: If a field used in a formula field is deleted, the formula field will break, and Salesforce will prevent deletion until the formula field is updated.

  References:Formula Fields Documentation

• Question 4:

  A developer is writing an Apex trigger that processes up to 200 records at once. The trigger performs a SOQL query for each record and occasionally exceeds governor limits.

  What should the developer do to resolve this issue?

  A. Move the SOQL query outside the for loop
  B. Convert the trigger to an after trigger
  C. Add a try-catch block around the query
  D. Use dynamic SOQL instead of static SOQL
  A. Move the SOQL query outside the for loop

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  Explanation

  Salesforce enforces strict governor limits, including limits on the number of SOQL queries that can be executed in a single transaction. When a SOQL query is placed inside a for loop that processes many records, the query may execute once per record, quickly exceeding the allowed limit. The best practice is to bulkify the trigger by moving the SOQL query outside the loop and querying all required records in a single statement. The results can then be stored in a map for efficient access during iteration.

  Changing the trigger context or adding error handling does not reduce SOQL usage, and dynamic SOQL does not inherently improve governor limit compliance.

• Question 5:

  Which two characteristics are true for Lightning Web Component custom events? Choose 2 answers

  A. Data may be passed in the payload of a custom event using @wire decorated properties.
  B. Data may be passed In the payload of a custom event using a property called detail.
  C. By default a custom event only propagates to its immediate container and to its immediate child component.
  D. By default a custom event only propagates to it's immediate container.
  B. Data may be passed In the payload of a custom event using a property called detail.
  C. By default a custom event only propagates to its immediate container and to its immediate child component.

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  Explanation

  Option B: Custom events in LWC allow data to be passed using the detail property of the CustomEvent object. This is the recommended way to pass data in a custom event.

• Question 6:

  Universal Containers has a large number of custom applications that were built using a third-party JavaScript framework and exposed using Visualforce pages. The company wants to update these applications to apply styling that resembles the look and feel of Lightning Experience.

  What should the developer do to fulfill the business request in the quickest and most effective manner?

  A. Rewrite all Visualforce pages as Lightning components.
  B. Set the attribute enableLightning to true in the definition.
  C. Enable Available for Lightning Experience, Lightning Communities, and the mobile app on Visualforce pages used by the custom application.
  D. Incorporate the Salesforce Lightning Design System CSS stylesheet Into the JavaScript applications.
  D. Incorporate the Salesforce Lightning Design System CSS stylesheet Into the JavaScript applications.

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  Explanation

  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 attribute enableLightning in Visualforce.

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

  References: Salesforce Lightning Design System (SLDS)

• Question 7:

  Which code in a Visualforce page and/or controller might present a security vulnerability?

  

  B

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  Explanation

  Using with user-supplied input ($CurrentPage.parameters.userInput) disables HTML escaping and can allow cross-site scripting (XSS).

• Question 8:

  A developer writes a trigger on the Account object on the before update event that increments a count field. A record triggered flow also increments the count field every time that an Account is created or updated.

  What is the value of the count field if an Account is inserted with an initial value of zero, assuming no other automation logic is implemented on the Account?

  A. 4
  B. 2
  C. 1
  D. 3
  C. 1

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  Explanation

  When the Account is inserted, the record-triggered flow configured for create and update runs once and increments the count field from 0 to 1. The Apex trigger is defined only on before update, so it does not execute during the insert operation. Because no update occurs as part of the insert in this scenario, the trigger never runs, and the count field is incremented only once.

• Question 9:

  A developer created this Apex trigger that calls MyClass.mystaticMethod:

  

  The developer creates a test class with a test method that calls MyClass.myStaticMethod 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?

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

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  Explanation

  Salesforce requires that every trigger must have at least 1% test coverage to be deployed. Since the trigger in question has 0% test coverage, the deployment will fail even if the helper method and related classes meet the coverage requirement.

• Question 10:

  How is a controller and extension specified for a custom object named "Notice" on a Visualforce page?

  A. apex:page standardController="Notice_c" extensions="myControllerExtension""
  B. apex:page controllers="Notice_c, myContcollerExtension"
  C. apex:pege=Notice extends="myControllerExtension"
  D. apex:page controller="Notice_c" extensions="myControllerExtension"
  D. apex:page controller="Notice_c" extensions="myControllerExtension"

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  Explanation

  In Visualforce, to specify a standard controller for a custom object, the syntax is controller=" ObjectName__c".

  To add custom functionality, you can use an extensions attribute to include a controller extension.

  Why not other options?

  A: The correct syntax is controller, not standardController, for custom objects.

  B and C: These are syntactically incorrect.

  References: Visualforce Pages Documentation