PD2 practice questions 31–40

1. Question 31 · 279 in bank

   While developing 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?

   • AUse the with sharing keyword.
   • BUse the intertied sharing keyword.
   • CUse the without sharing keyword.
   • DUse the WITH SECURITY_ENFORCED clause within the SOQL

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   Answer: D

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2. Question 32 · 279 in bank

   Select 3

   A customer has a single Visualforce page that allows each user to input up to 1500 sales forecasts and instantly view pivoted forecast calculations. Users are complaining that the page is loading slowly, and they are seeing error messages regarding heap and view state limits. What are three recommendations to optimize page performance? (Choose three.)

   • ASegregate calculation functionality from input functionality
   • BSpecify the list of sales forecasts as transient
   • CImplement pagination and reduce records per page
   • DCreate formula fields to compute pivoted forecast calculations
   • EUse JavaScript Remoting instead of controller actions

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   Answer: ABC

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3. Question 33 · 279 in bank

   Select 3

   A developer is creating unit tests for code that makes SOAP web service callouts. The developer needs to insert some test data as a part of the unit tests setup. What are three actions to enable this functionality? (Choose three.)

   • ASurround the callout with Test.startTest(), Test.stopTest()
   • BSurround the data insertion with Test.startTest(), Test.stopTest()
   • CImplement the WebServiceMock interface
   • DUpdate code to call Test.setMock()
   • EImplement the HttpCalloutMock interface

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   Answer: ACD

   References

   • developer.salesforce.com documentation
   • developer.salesforce.com documentation

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4. Question 34 · 279 in bank

   Select 2

   Which of the follow be used together in DML operations (transaction)? (Choose two.)

   • AAccount - AccountShare
   • BCase - CaseComment
   • COpportunity - User
   • DAccount - Order

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   Answer: AB

   References

   • developer.salesforce.com documentation
   • developer.salesforce.com documentation

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5. Question 35 · 279 in bank

   

   Consider the Apex controller above, that is called from a Lightning Aura Component. What is wrong with it?

   • ALine 1: class must be global
   • BLines 1 and 6: class and method must be global
   • CLine 6: method must be static
   • DLine 8: method must first serialize the list to JSON before returning

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   Answer: C

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6. Question 36 · 279 in bank

   A developer has generated Apex code from a WSDL for an external web service. The web service requires Basic authentication. What code should the developer use to authenticate?

   • AHttp.setHeader ('Authorization' , 'Basic QthZGprjpchVulHNchFtZQ')
   • Bstub.inputHttpHeaders_x.put('Authorization' , 'Basic QthZGprjpchVulHNchFtZQ')
   • CHttp.setAuthentication('Basic QthZGprjpchVulHNchFtZQ')
   • Dstub.authentication.put ('Authorization','Basic QthZGprjpchVulHNchFtZQ')

   Show answer

   Answer: B

   References

   • developer.salesforce.com documentation

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7. Question 37 · 279 in bank

   global with sharing class MyRemoter { public String accountName { get; set; } public static Account account { get; set; } public AccountRemoter() {} @RemoteAction global static Account getAccount(String accountName) { account = [SELECT Id, Name, NumberOfEmployees FROM Account WHERE Name = :accountName]; return account; } } Consider the Apex class above that defines a RemoteAction used on a Visualforce search page. Which code snippet will assert that the remote action returned the correct Account?

   • AAccount a = controller.getAccount('TestAccount'); System.assertEquals( 'TestAccount', a.Name );
   • BMyRemoter remote = new MyRemoter(); Account a = remote.getAccount('TestAccount'); System.assertEquals( 'TestAccount', a.Name );
   • CMyRemoter remote = new MyRemoter('TestAccount'); Account a = remote.getAccount (); System.assertEquals( 'TestAccount', a.Name );
   • DAccount a = MyRemoter.getAccount('TestAccount'); System.assertEquals( 'TestAccount', a.Name );

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   Answer: D

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8. Question 38 · 279 in bank

   Select 2

   What is the correct syntax for calling a controller action from a Visualforce page and updating part of the page once the action is completed? (Choose two.)

   • A<apex:commandFunction action="{!Save}" value="Save" rendered="thePageBlock"/>
   • B<apex:actionFunction action="{!Save}" name="Save" rerender="thePageBlock"/>
   • C<apex:commandButton action="{!Save}" value="Save" redraw="thePageBlock"/>
   • D<apex:actionSupport action="{!Save} " event="onchange" rerender="thePageBlock"/>

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   Answer: BD

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9. Question 39 · 279 in bank

   Employee_c is a Child object of Company_c. The Company_c object has an external Id field Company_Id_c. How can a developer insert an Employee_c record linked to Company_c with a Company_Id_c of '999'?

   • AEmployee_c emp = new Employee_c(Name='Developer'); emp.Company_r = '999' insert emp;
   • BEmployee_c emp = new Employee_c(Name='Developer'); emp.Company_c = '999' insert emp;
   • CEmployee_c emp = new Employee_c(Name='Developer'); emp. Company_c = new Company_c(Company_Id_c='999') insert emp;
   • DEmployee_c emp = new Employee_c(Name='Developer'); emp.Company_r = new Company_r(Company_Id_c='999') insert emp;

   Show answer

   Answer: C

   Explanation

   In option D, Company_r(Company_Id_c='999') it should be Company__c to work. In Option C, emp.Company_c = new Company_c(Company_Id_c='999') it should be emp.Company_r on LHS for it to work.

   Source: Adapted from community discussion — Hello_Sfdc

   References

   • developer.salesforce.com documentation

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10. Question 40 · 279 in bank

    A developer must create a custom pagination solution. While users navigate through pages, if the data is changed from elsewhere, users should still see the cached results first accessed. How can the developer meet these requirements?

    • AUse @Cache annotation
    • BUse a StandardSetController
    • CUse OFFSET in SOQL queries
    • DUse OFFSET WITH CACHE in SOQL queries

    Show answer

    Answer: B

    Explanation

    OFFSET is applied to the result set returned at the time of the query. No server-side cursor is created to cache the full result set for future OFFSET queries. The page results may change if the underlying data is modified during multiple queries using OFFSET into the same result set. As an example, suppose that the following query normally returns a full result set of 50 rows, and the first 10 rows are skipped using an OFFSET clause:

    Source: Adapted from community discussion — Liquad

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PD2 practice, question 31. 279 questions available.