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Question # 1

A page throws an ‘Attempt to dereference a null object’ error for a Contact. What change in the controller will fix the error? 

A. Declare a static final Contact at the top of the controller.
B. Use a condition in the getter to return a new Contact if it is null.
C Change the setter’s signature to return a Contact.
D. Change the getter's signature to be static Contact.

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Question # 2

Refer to the markup below:


A Lightning web component displays the Account name and two custom fields out of 275 that exist on the abject. The custom fields are correctly declared andpopulated. However, the developer receives complaints that the component performs slowly. What can the developer do to improve the performance? 

A. Replace Layout-type =''Full1" with Layout-type="Partial”.
B. Replace layout-type =''1" with fields=(fields}.
C. Add density="compat" to the component.
D. Add cache="true" to the component.

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Question # 3

A company has an Apex process that makes multiple extensive database operations and web service callouts. The database processes and web services can take a long time to run and must be run sequentially. How should the developer write this Apex code without running into governor limits and system limitations? 

A. Use Queueable Apex to chain the jobs to run sequentially.
B. Use Apex Scheduler to schedule each process.
C. Use multiple 3zutuze methods for each process and callout.
D. Use Limits class to stop entire process once governor limits are reached.

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Question # 4

A developer wrote a test class that successfully asserts a trigger on Account, It fires and updates data correctly In a sandbox environment. A Salesforce admin with a custom profile attempts to deploy this trigger via a change set into the production environment, but the test class falls with an Insufficient privileges error. What should a developer do to fix the problem? 

A. Configure the production environment to enable"Run All Tests as Admin User.”
B. Add System.runAs() to the test class to execute the trigger as a user with the correctobjectpermissions.
C. Add seeallData=true to the test class to work within the sharing model for the productionenvironment.
D. Verify that Test. startTest() Is not Inside a For loop in the test class,

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Question # 5

The use of the transient keyword in Visualforce page controllers helps with which common performance issue? 

A. Reduces load times
B. Improves page transfers
C. Reduces view state
D. Improves query performance

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Question # 6

Universal Containers needs to integrate with their own, existing, internal custom web application. The web application accepts JSON payloads, resizes product images, and sends the resized images back to Salesforce. What should the developer use to implement this integration? 

A. An Apex trigger that calls an @future method that allows callouts
B. A platform event that makes a callout to the web application
C. A flow that calls an @future method that allows callouts
D. A flow with an outbound message that contains a session ID

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Question # 7

A company notices that their unit tests in a test class with many methods to create many records for prerequisite reference data are slow. What can a developer to do address the issue? 

A. Turn off triggers, flows, and validations when running tests.
B. Move the prerequisite reference data setup to a TestDataFactory and call that from eachtest method,
C. Move the prerequisite reference data setup to a @testSetup method in the test class.
D. Move the prerequisite reference data setup to the constructor for the test class.

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Question # 8

Users report that a button on a custom Lightning web component (LWC) is not saving the data they enter. The button looks to be clicked, but the LWC simply sits there, seemingly doing nothing. What should the developer use to ensure error messages are properly displayed? 

A. Add a try-catch block surrounding the DML statement.
B. Use the Database method with a110rNone Set to false.
C. Add the <apex:messages/> tag to the component.
D. Add JavaScript and HTML to display an error message.

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Question # 9

An org has an existing process, built using Process Builder, on Opportunity that sets a custom field, CommissionBaseAmount__c, when an Opportunity is edited and the Opportunity's Amount changes. A developer recently deployed an Opportunity before update trigger that uses the CommissionBaseAmount__c and complex logic to calculate a value for a custom field, CommissionAmount__c, when an Opportunity stage changes to Closed/Won. Users report that when they change the Opportunity to Closed/Won and also change the Amount during the same save, the CommissionAmount__c is incorrect. Which action should the developer take to correct this problem? 

A. A Replace the process with a Fast Field Update record-trigger flow.
B. Call the trigger from the process.
C. Call the process from the trigger.

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Question # 10

A Salesforce developer is hired by a multi-national company to build a custom Lightning application that shows employees their employment benefits and earned commissions over time. The application must acknowledge and respect the user's locale context for dates, times, numbers, currency, and currency symbols. When using Aura components, which approach should the developer implement to ensure the Lightning application complies with the user's locale?

A. Record ownership
B. Criteria-based sharing
C. Apex managed sharing
D. User managed sharing

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Question # 11

A Salesforce developer is hired by a multi-national company to build a custom Lightning application that shows employees their employment benefits and earned commissions over time. The application must acknowledge and respect the user's locale context for dates, times, numbers, currency, and currency symbols. When using Aura components, which approach should the developer implement to ensure the Lightning application complies with the user's locale? 

A. Use the $User global variable to retrieve the user preferences.
B. Use the $Label global value provider.
C. Use the $Lacale value provider to retrieve the user preferences.
D. Create a Hierarchical custom setting to store user preferences.

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Question # 12

Universal Containers uses Big Objects to store almost a billion customer transactions called Customer_Transaction__b. These are the fields on Customer_Transaction__b: Account__c - Program__c - Points_Earned__c - Location__c - Transaction_Date__c - The following fields have been identified as Index Fields for the Customer_Transaction__b object: Account__c, Program__c, and Transaction_Date__c. Which SOQL query is valid on the Customer_Transaction__b Big Object? 

A. SELECT Account__c, Program__c, Transaction_Date__c FROMCustomer_Transaction__b WHERE Account__c = '001R000000302D3' AND Program__c='Shoppers' AND Transaction_Date__c=2019-05-31T00:00Z
B. SELECT Account__c, Program__c, Transaction_Date__c FROM Customer_Transaction__b WHERE Account__c = '001R000000302D3' AND Program__cLIKE 'Shop%' AND Transaction_Date__c=2019-05-31T00:00Z
C. SELECT Account__c, Program__c, Transaction_Date__c FROMCustomer_Transaction__b WHERE Account__c = '001R000000302D3' AND Program__cINCLUDES ('Shoppers', 'Womens') AND Transaction_Date__c=2019-05-31T00:00Z
D. SELECT Account__c, Program__c, Transaction_Date__c FROMCustomer_Transaction__b WHERE Account__c = '001R000000302D3' AND Program__cEXCLUDES ('Shoppers', 'Womens') AND Transaction_Date__c=2019-05-31T00:00Z

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Question # 13

Universal Containers develops a Visualforce page that requires the inclusion of external JavaScript and C55 files. They want to ensure efficient loading and caching of the page. Which feature should be utilized to achieve this goal? 

A. ActionFunction
B. PageBlockTable
C. Static resources
D. RemoteAction

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Question # 14

A software company uses a custom object, Defact__c, to track defects in their software. Defect__c has organization-wide defaults set to private. Each Defect_ c has a related list of Reviewer < records, each with a lookup field to User that is used to indicate that the User will review the defect__c. What should be used to give the User on the Reviewer_c record read only access to the Defect__c record on the Reviewer_c record? 

A. Apex managed sharing
B. Criteria-based sharing
C. Lightning web component
D. View All on Defect__c

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Question # 15

Which two queries are selective SOQL queries and can be used for a large data set of 200,000 Account records? Choose 2 answers 

A. SELECT Id FROM Account WHERE Name LIKE '!-NULL
B. SELECT Id FRCM Account WHERE Name != ’ ’
C. SELECT Id FRCM Account WHEP Name IN (List of Names) ANDCustomer_Number_c= 'ValueA
D. SELECT Id FROM Account WHERE II IK (List of Account Ida)

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Question # 16

Universal Containers (UC) has an ERP system that stores customer Information, When an Account is created in Salesforce, the ERP system's REST endpoint for creating new customers must automatically be called with the Account information. If the call to the ERP system falls, the Account should still be created. Accounts in the UC org are only created, one at a time, by users in the UC customer on-boarding department. What should a developer implement to make the call to the ERP system's REST endpoint?

A. Custom objects
B. Custom settings
C. Custom metadata
D. Custom labels

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Question # 17

Universal Containers (UC) has an ERP system that stores customer Information, When an Account is created in Salesforce, the ERP system's REST endpoint for creating new customers must automatically be called with the Account information. If the call to the ERP system falls, the Account should still be created. Accounts in the UC org are only created, one at a time, by users in the UC customer on-boarding department. What should a developer implement to make the call to the ERP system's REST endpoint? 

A. REST call from JavaScript
B. Headless Quick Action
C. Call a Queueable from a Trigger
D. Apex Continuation

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Question # 18

What is the optimal way to fix this?

A. Option A
B. Option B
C. Option C
D. Option D

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Question # 19

Given the following containment hierarchy: What is the correct way to communicate the new value of a property named ‘’passthrough’’ to my-parent-component if the property is defined within my-child-component?

 

A. Option A
B. Option B
C. Option C
D. Option D

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Question # 20

Consider the Apex controller below, that is called from an Aura component.


What is wrong with this code?

A. Line 1: class must be global 8. Lines 1 and 6: class and method must be global
B. Line 6: method must be static
C. Line 8: method must first serialize the list to JSON before returning

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Question # 21

Which three Visualforce components can be used to initiate Ajax behavior to perform partial page updates? Choose 3 answers 

A. <apex:commondLink>
B. <apex:commandButton>
C. <Apex:form>
D. <apex:actionsStatus>
E. <apex:actionSupport>

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Question # 22

A developer has requirement to query three fields (id, name, Type) from an Account and first and last names for all Contacts associated with the Account. Which option is the preferred optimized method to achieve this for the Account named ‘Ozene Electronics’?

A. Account a = (SELECT ID, Name, Type from Account where name= Ozone Electronics;)list 1contacts = (SELECT firstname, lastname from Contacts where accountid=: a -ID0;
B. A. Account a = (SELECT ID, Name, Type, (select contat,firstName, Contact,LastName from Account, Contacts) from Account where name; Ozone Electronic' Limit 1 );
C. List 1Accounts = (Select ID, Name, Type from Account Join (Select ID, firstname, lastname form Contact where contact account , name 'ozone electronics));
D. List 1Contacts = new list ( );for(Contact c ; 1Select firstname, lastname Account, Name Account,ID Account, Type from Contact where Account: Name=' electronics')) ( iContacts.add(c);)

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Question # 23

A developer wrote a class named AccountHistoryManager that relies on field history tracking. The class has a static method called getAccountHistory that takes in an account as a parameter and returns a list of associated AccountHistory object records. The following test fails:


What should be done to make this test pass?

A. Use @isTest(SeeAllData-true) to see historical data from the org and query for AccountHistory records. 
B. Use Test.isRunningTest () in getAccountHistory () to conditionally return fake Account History records. 
C. Create AccoumHistory records manually in the test setup and write a query to get them. 
D. The test method should be deleted since this code cannot be tested. 

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Question # 24

Which three actions must be completed in a Lightning web component for a JavaScript file in a static resource to be loaded? Choose 3 answer 

A. Import the static resource. 
B. Reference the static resource in a <script> tag. 
C. Import a method from the platformResourceLoader. 
D. Call LoadScript. 
E. Append the static resource to the DOM. 

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Question # 25

A developer is tasked with creating a Lightning web component that is responsive on various devices. Which two components should help accomplish this goal? Choose 2 answers

A. Lightning-input-location
 B. Lightning-layout-item
 C. Lightning-navigation 
D. Lightning-iayout 

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Question # 26

A company has a custom object, Order_ c, that has a custom picklist field, Status__ c, with values of New/ 'In Progress/ or 'Fulfilled' and a lookup field, Contact__ c, to Contact. Which SOQL query will return a unique list of all the Contact records that have no 'Fulfilled' Orders?

A. option
 B. option 
C. option 
D. option 

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Question # 27

Consider the following code snippet: How should component communicate to the component that an order has been selected by the user?

A. Created and fire an application event. 
B. Create and fire a standard DOM event. 
C. Create and fire a component event. 
D. Create and dispatch a custom event 

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Question # 28

A company wants to incorporate a third-party web service to set the Address fields when an Account is inserted, if they have not already been set. What is the optimal way to achieve this?

A. Create a Before Save Flow, execute a Queueable job from it, and make a callout from the Queueable job. 
B. Create an Apex trigger, execute a Queueable job from it, and make a callout from the Queueable job. 
C. Create a Workflow Rule, execute a Queueable job from it, and make a callout from the Queueable job. 
D. Create a Process, execute a Queueable job from it, and make a callout from the Queueable job. 

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Question # 29

An org has an existing process, built using Process Builder, on Opportunity that sets a custom field, commissionBaseAmount_ c, when an Opportunity is edited and the Opportunity’s Amount changes. A developer recently deployed an Opportunity before update trigger that use the commissionBaseAmount_ c, andcomplex logic to calculate a value for a custom field, CommissionAmount_ c, when an Opporunity stage changes to Closed/Won. Users report that when they change the Opportunity stage changes to Closed/Won and also change the Amount during the same save, the commission_ c is incorrect. Which action should the developer take to correct this problem?

A. Call the process from the trigger. 
B. Call the trigger from the process. 
C. Replace the process with a fast field Update record-trigger flow. 

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Question # 30

Consider the following code snippet:


Users of this Visualforce page complain that the page does a full refresh every time the Search button is pressed. What should the developer do to ensure that a partial refresh is made so that only the section identified with opportunity List Is re-drawn on the screen?

A. Ensure the action method search returns null. 
B. Implement the tag with immedate _true. 
C. Implement the reRender attribute on the tag.
 D. Enclose the DATA table within the tag. 

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Question # 31

A company uses Salesforce to sell products to customers. They also have an external product information management (P1M) system that If the system of record for products. A developer received these requirements • Whenever a product is created or updated in the PIM, a product must be created or updated as a Product2 record in Salesforce and a PricebookEntry record must be created or updated automatically by Salesforce. • The PricebookEntry should be created in a Pricebooki that is specified in a custom setting. What should the developer use to satisfy these requirements? 

A. Apex REST
 B. Event Monitoring 
C. Invocated Action
 D. Sobject Tree

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Question # 32

Refer to the Aura component below:
 
A developer receives complaints that the component loads slowly. Which change can the developer implement to make the component perform faster?

A. Change the type of contactInfo to "Map'. 
B. Add a change event handler for showcontactInfo. 
C. Change the default for showcontactlnfo to "false'. 
D. Move the contents of into the component. 

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Question # 33

Consider the Apex class below that defines a RemoteAction used on a Visualforce search page.


Which code snippet will assert that the remote action returned the correct Account?
 

A. Option A 
B. Option B 

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Question # 34

A developer has created, Lightning web component that uses the get Record wire adapter. Which three things should the developer do in a test validate the wire method is working as expected? Choose 3 answer 

A. Import wire from 1w. 
B. Create a JSOM file with mock data.
 C. Use the emit () API. 
D. Use an assert statement to validate results. 
E. Import getRecord from Lightning/uiRecordAPi. 

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Question # 35

An Apex class does not achieve expected code coverage. The testsetup method explicitly calls a method in the Apex class. How can the developer generate the code coverage? 

A. Call the Apex class method from a testMethod instead of the testsetup method. 
B. Verify the user has permissions passing a user into system.runAs (). 
C. Use system.aasert () in testSetup to verify the values are being returned. 
D. Add @testvisibie to the method in the class the developer is testing. 

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Question # 36

An Apex trigger creates a Contract record every time an Opportunity record is marked as Closed and Won. This trigger is working great, except (due to a recent acquisition) Opportunity records need to be loaded into the Salesforce instance. When a test batch of records are loaded, the Apex trigger creates Contract records. A developer is tasked with preventing Contract records from being created when mass Loading the Opportunities, but the daily users still need to have the Contract records created. What is the most extendable way to update the Apex trigger to accomplish this?

A. Add a validation rule to the Contract to prevent Contract creation by the user who loads the data. 
B. Add the Profile ID of the user who loads the data to the trigger, so the trigger will not fire for this user. 
C. Use a list custom setting to disable the trigger for the user who loads the data. 
D. Use a hierarchy custom setting to skip executing the logic inside the trigger for the user who loads the data. 

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Question # 37

A developer is creating a lightning web component to display a calendar. The component will be used in multiple countries. In some locales, the first day of the week is a Monday, or a Saturday, or a Sunday. What should the developer do to ensure the calendar displays accurately for users in every locale?

A. Use a custom metadata type to store key/value pairs. 
B. Query the firstDayofweek field from the Locale for the current user. 
C. Use UserInfo,getLocale () in the component. 
D. Import the FirstDayofweek property m the component 

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Question # 38

Which tag should a developer use to display different text while an is executing versus not executing?c

A. <apexactionPoller>
B. <ApexactionSupper>
C. <ApexactionStatus>
D. <ApexpageMessages>

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Question # 39

A developer is building a Lightning web component that searches for Contacts. The component must communicate the search results to other unrelated Lightning web components, that are in different DOM trees, when the search completes. What should the developer do to implement the communication?

A. Publish a message on a message channel. 
B. Fire a custom component event. 
C. Publish an event on an event channel. 
D. Fire an application event. 

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Question # 40

A developer is trying to decide between creating a Visualforce component or a Lightning component for a custom screen. Which functionality consideration impacts the final decision? 

A. Does the screen need to be accessible from the lightning Experience UI? 
B. Will the screen make use of a JavaScript framework? 
C. Does the screen need to be rendered as a PDF without using a third-party application? 
D. Will the screen be accessed via a mobile app? 

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Question # 41

A developer created a Lightning web component that uses a lightning-record-edit-form t collect information about Leads. Users complain that they only see one error message at a time about their input when trying to save a Lead record. complain that they only see one error message at a time about their input when trying to save a Lead record. What is the recommended approach to perform validations on more than one field, and display multiple error messages simultaneously? with minimal JavaScript intervention?

A. Try/catch/finally block
 B. Apex trigger 
C. Validation rules 
D. External JavaScript library 

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Question # 42

c
AWC wants the real-time inventory reduction for a product to be sent to many of its external systems, including some future systems the company is Currently planning. What should a develops add to the code at the placeholder to meet these requirement!?

A. Option A 
B. Option B 
C. Option C 
D. Option D

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Question # 43

As part of a new integration, a developer is asked to implement a new custom search functional that is capable of performing unrestricted Queries and can account for all values within a custom picklist field. Type_ c, on the Opportunity object. The search feature must also account for NULL values. The organization-wide default for the Opportunity object is set to Public Read-Only, and a new custom index has been created for the type_ c, field. There are more than 5 million Opportunity records within the environment, and a considerable amount of the existing records have NULL values for the picklist. Which technique should the developer implement to maximize performance when querying NULL values? 

A. Create a formula field that substitutes Null values for a sting of text, create an index for the formula field, then use the formula within the where cause. 
B. Perform two SOQL query; one to query Opportunities where Type c _ NULL, and another to query where Type_ c = Null, then join the result set using Apex. 
C. Use a SOSL query to return ALL opportunities that have a value of NULL in any field. 
D. Use the OR operator to combine WHERE Causes to strictly search for each value within the picklist, including Type__ c =NULL. 

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Question # 44

As part of a custom interface, a developer team creates various new Lightning web components. Each of the components handles error* using toast messages. When the development is complete, all the components are added to the same Lightning page. During acceptance testing, users complain about the long chain of toast messages that display when errors occur loading the component Which two techniques should the developer Implement to improve the user experience? Choose 2 answers

A. Use a <template> tag to display in-place error messages.
B. Use a Lightning web component to aggregate and display all errors.
C. Use the window. Alert () method to display the error messages.
D. Use public properties on each component to display the error messages.

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Question # 45

Which technique can run custom logic when a Lightning web component is loaded?

A. Call SA.enqueueAction and pass in the method to call. 
B. Use the renderedCallback () method. 
C. Use an init event to call a function. 
D. Use the connected-allbacM) method. 

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Question # 46

A company has code to update a Request and Request Lines and make a callout to their external ERP system’s REST endpoint with the updated records.
 
What should be done to address the problem

A. Move the CalloutUtil.makeRestCallout method call below the catch block. 
B. Remove the Database.setSavepoint and Database.rollback. 
C. Change the CalloutUtil.makeRastCallout to an @InvocableMethed method. 
D. Change the CalloutUtil.makeRestCallout to an @future method. 

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Question # 47

A developer Is asked to develop a new AppExthange application. A feature of the program creates Survey records when a Case reaches a certain stage and Is of a certain Record Type. This feature needs to be configurable, as different Salesforce instances require Surveys at different times. Additionally, the out-of-the-box AppExchange app needs to come with a set of best practice settings that apply to most customers. What should the developer use to store and package the custom configuration settings for the app?

 A. Custom Settings
 B. Custom Metadata 
C. Custom Objects 
D. Process Builder 

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Question # 48

The Salesforce admin at cloud kicks created a custom object called Region_ c to store all postal zip codes in the United States and the Cloud Kicks sales region the Zip code belong to.

A. Option A 
B. Option B 
C. Option C 
D. Option D 

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Question # 49

A developer creates an application event that has triggered an infinite loop. What may have caused this problem?

A. The event is fired from a custom renderer. 
B. An event is fired ‘ontouchend’ and is unhandled. 
C. The event has multiple registered in the project. 
D. The event handler calls a trigger. 

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Question # 50

A developer is trying to access org data from within a test class. Which sObject type requires the test class to have the (seeAllData=true) annotation? 

A. RecordType 
B. Profile
 C. User 
D. Report 

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Question # 51

Refer to the Lightning component below: The Lightning Component allows users to click a button to save their changes and then redirects them to a different page. Currently when the user hits the Save button, the records are getting saved, but they are not redirected. Which three techniques can a developer use to debug the JavaScript? Choose 3 answers

A. Use the browser's dev tools to debug the JavaScript. 
B. Enable Debug Mode for Lightning components for the user. 
C. Use Developer Console to view checkpoints. 
D. Use console.log () messages in the JavaScript. 
E. Use Developer Console to view the debug log.

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Question # 52

There are user complaints about slow render times of a custom data table within a Visualforce page that loads thousands of Account records at once. What can a developer do to help alleviate such issues?

A. Upload a third-party data table library as a static resource. 
B. Use JavaScript remoting to query the accounts. 
C. Use the standard Account List controller and implement pagination. 
D. Use the transient keyword in the Apex code when querying the Account records. 

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Question # 53

A developer creates a Lightning web component to allow a Contact to be quickly enteredHowever, error messages are not displayed. Choose 3 answers

A. Add a tarqetConfig anf set targets to lightning_RecordAction.
 B. In targetConfigs, add Lightning_Apppage as a target. 
C. Set action Type to screenAction. 
D. In target, add lightning_RecordAction as a target. 
E. Set eventType to action. 

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Question # 54

A developer creates a Lightning web component to allow a Contact to be quickly enteredHowever, error messages are not displayed.
 
Which component should the developer add to the form to display error messages?

A. apex:messages 
B. aura:messages
 C. lightning-messages 
D. lightning-error 

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Question # 55

What should be added to the setup, in the location indicated, for the unit test above to create the controller extension for the test?

A. Option A 
B. Option B 
C. Option C 
D. Option D 

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Question # 56

Universal Containers (UC) has custom Order and Order Line objects that represent orders placed by its customers. A developer has a new requirement that UC's external enterprise resource planning (CRP) system placed by its customers. integrate with Salesforce to create orders for existing customers in Salesforce whenever an ERP system. What should the developer use to create the orders in Salesforce?

A. Connect API 
B. Change Data Capture API 
C. SObject Tree API
 D. Event Monitoring API 

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Question # 57

When the sales team views an individual customer record, they need to see recent interactions for the customer. These interactions can be sales orders, phone cats, or Cases. The date range for recent interactions will be recent for every customer record type. How can this be accomplished?

A. Use Lightning Flow to read the customer's record type, and then do a dynamic Query for recent interactions and display on the View page. 
B. Use a Lightning component to query and display interactions based on record type that is passed in using a design: attribute from the Lightning page. 
C. Use batch Apex to query for the most recent interactions when the customer view screen is loaded.
 D. Use a dynamic form on the customer record page to display recent interactions. 

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Question # 58

Given the following information regarding Universal Containers (UC): • UC represents their customers as Accounts in Salesforce • All customer has a unique Customer-Number- c, that is unique across all of UC's systems. • UC also has a custom Invoice_ c object, with a Lookup to Account, to represent invokes that are sent out from their external system UC wants to integrate invoice data back into Salesforce so Sales Reps can see when a customer pays their bills on time. What is the optimal way to implement this?
 

A. Option A 
B. Option B 
C. Option C 
D. Option D 

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Question # 59

Refer to the test method below:


An external system with Account information and sets the Account's IntegrationUpdated___ c checkbox to True when it completes. The test fails to execute and exits with an error: "Methods defined as TestMethod do not support Web service callouts." What is the optimal way to fix this?

A. Add if ('Test.isRunningTest I)) around calloutUtil.sendAccountUpdate. 
B. Add Test.startTest ()before and Test.stopTest () after CallcutoutUtil. sendAccoutUpdate. 
C. Add Test.startTest before and Test.setMock and Test. stoptest () after CallloutUtil.sendAccountUpdate.
 D. Add Test.startTest() and Test .setMock before and Test.stopTest () after CalloutUtil.sendAccountUpdate. 

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Few More Salesforce PDII Exact Exam Questions:

Question # 1. Users report that a button on a custom Lightning Web Component is not working. However, there are no other details provided. What should the developer use to ensure error messages are properly displayed?
A. Add the tag to the component.
B. Use the Database method with allOrNone set to false.
C. Add a Try/Catch block surrounding the DML statement.
D. Add JavaScript and HTML to display an error message.
Answer: A

Salesforce PDII Frequently Asked Questions