PD2 practice questions 101–110

1. Question 101 · 279 in bank

   A developer created a new trigger that inserts a Task when a new Lead is created. After deploying to production, an outside integration is periodically reporting errors. Which change should the developer make to ensure the integration is not affected with minimal impact to business logic?

   • ARemove the Apex Class from the Integration User's Profile.
   • BUse the Database method with allOrNone set to False.
   • CUse a Try/Catch block after the insert statement.
   • DDeactivate the Trigger before the Integration runs.

   Show answer

   Answer: B

   Explanation

   yes. You can surely suppress the error using try catch, but the insertion of other record within the same transaction will be canceled as well. Since try catch is "AllOrNone".

   Source: Adapted from community discussion — Soliton321

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2. Question 102 · 279 in bank

   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. Which approach should the developer implement to ensure the Lightning application complies with the user's locale?

   • ACreate a Hierarchical custom setting to store user preferences
   • BUse the $Locale value provider to retrieve the user preferences
   • CUse the $User global variable to retrieve the user preferences
   • DUse JavaScript in the component's controllers to format values

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   Answer: B

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3. Question 103 · 279 in bank

   The Account edit button must be overridden in an org where a subset of users still use Salesforce Classic. The org already has a Lightning Component that will do the work necessary for the override, and the client wants to be able to reuse it. How should a developer implement this?

   • AOverride the edit button for both Lightning and Classic with a Lightning Component
   • BOverride the edit button for both Lightning and Classic with a new Visualforce page
   • COverride the edit button for Lightning with a Lightning Page, and Classic with a Visualforce page that contains the Lightning Component
   • DOverride the edit button for Lightning with a Lightning Component, and Classic with a Visualforce page that contains the Lightning Component

   Show answer

   Answer: C

   References

   • Salesforce Help
   • developer.salesforce.com documentation

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4. Question 104 · 279 in bank

   A business process requires sending new Account records to an external system. The Account Name, Id, CreatedDate, and Created ById must be passed to the external system in near real-time when an Account is inserted without error. How should a developer achieve this?

   • AUse a before insert trigger and a Queueable class
   • BUse a before insert trigger and an @future method
   • CUse a Process Builder that calls an @InvocableMethod method
   • DUse a Workflow rule that calls an @InvocableMethod method

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   Answer: C

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5. Question 105 · 279 in bank

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

   • AThe event handler calls a trigger
   • BThe event has multiple handlers registered in the project
   • CAn event is fired 'ontouchend' and is unhandled
   • DThe event is fired from a custom renderer

   Show answer

   Answer: A

   Explanation

   From this url seems to be D: "Don't Fire an Event in a Renderer Firing an event in a renderer can cause an infinite rendering loop." https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/events_anti_patterns.htm

   Source: Adapted from community discussion — corpex

   References

   • developer.salesforce.com documentation

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6. Question 106 · 279 in bank

   An environment has two Apex Triggers: an after-update trigger on Account and an after-update trigger on Contact. The Account after-update trigger fires whenever an Account's address is updated, and it updates every associated Contact with that address. The Contact after-update trigger fires on every edit, and it updates every Campaign Member record related to the Contact with the Contact's state. Consider the following: A mass update of 200 Account records' addresses, where each Account has 50 Contacts. Each Contact has 1 Campaign Member. This means there are 10,000 Contact records across the Accounts and 10,000 Campaign Member records across the contacts. What will happen when the mass update occurs?

   • AThe mass update will fail, since the two triggers fire in the same context, thus exceeding the number of records processed by DML statements.
   • BThere will be no error, since each trigger fires within its own context and each trigger does not exceed the limit of the number of records processed by DML statements.
   • CThere will be no error, since the limit on the number of records processed by DML statements is 50,000.
   • DThe mass update of Account address will succeed, but the Contact address updates will fail due to exceeding number of records processed by DML statements.

   Show answer

   Answer: A

   Explanation

   The mass update will fail since the triggers fire in the same transaction. This will implies 20200 records updated by the DML statement where the limit is 10000

   Source: Adapted from community discussion — nibbio

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7. Question 107 · 279 in bank

   A managed package uses a list of country ISO codes and country names as reference data in many different places from within the managed package Apex code. What is the optimal way to store and retrieve the list?

   • AStore the information in Custom Metadata and query it with SOQL
   • BStore the information in a List Custom Setting and access it with the getAll() method
   • CStore the information in a List Custom Setting and query it with SOQL
   • DStore the information in Custom Metadata and access it with the getAll() method

   Show answer

   Answer: D

   Explanation

   Reference: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_customsettings.htm

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8. Question 108 · 279 in bank

   

   The test method above tests in Apex trigger that the developer knows will make a lot of queries when a lot of Accounts are simultaneously updated to be customers. The test method fails at the Line 20 because of too many SOQL queries. What is the correct way to fix this?

   • AChange the DataFactory class to create fewer Accounts so that the number of queries in the trigger is reduced
   • BAdd Test.startTest() before and Test.stopTest() after both Line 7 of the code and Line 20 of the code
   • CAdd Test.startTest() before Line 18 of the code and add Test.stopTest() after line 18 of the code
   • DReplace most of the Apex Trigger with Process Builder processes to reduce the number of queries in the trigger

   Show answer

   Answer: C

   Explanation

   The correct answer is C. This one is tricky. Pay attention to the part where it says "...will make a lot of queries when a lot of Accounts are simultaneously UPDATED to be customers." Here, they are telling us that all of the queries causing the SOQL limit to be hit are occurring at Line 18, when the accounts are updated to be customers. So, wrapping Line 18 with startTest() and stopTest() will give the test a fresh set of 100 queries when the update occurs. https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_tools_start_stop_test.htm

   Source: Adapted from community discussion — Jason_R

   References

   • developer.salesforce.com documentation

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9. Question 109 · 279 in bank

   A developer wants to use an Aura component with a custom action. What should be considered in order to do this?

   • AA default value must be provided for each component attribute marked as required
   • BThe class ג€slds-modal_ _containerג€ must be added to the top-level element of the component
   • CThe component must implement the flexipage:availableForRecordHome interface
   • DThe component's JavaScript controller must handle a method on initialization

   Show answer

   Answer: A

   Explanation

   Note For your Aura component to work as a custom action, you must set a default value for each component attribute marked as required. https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/components_using_lex_s1_config_action.htm

   Source: Adapted from community discussion — Yas010101

   References

   • developer.salesforce.com documentation

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10. Question 110 · 279 in bank

    Universal Containers implements a private sharing model for the Convention_Attendee_ _c custom object. As part of a new quality assurance effort, the company created an Event_Reviewer_ _c user lookup field on the object. Management wants the event reviewer to automatically gain Read/Write access to every record they are assigned to. What is the best approach to ensure the assigned reviewer obtains Read/Write access to the record?

    • ACreate a criteria-based sharing rule on the Convention Attendee custom object to share the records to a group of Event Reviewers.
    • BCreate an After Insert trigger on the Convention Attendee custom object, and use Apex Sharing Reasons and Apex Managed Sharing.
    • CCreate criteria-based sharing rules on the Convention Attendee custom object to share the records with the Event Reviewers.
    • DCreate a Before Insert trigger on the Convention Attendee custom object, and use Apex Sharing Reasons and Apex Managed Sharing.

    Show answer

    Answer: B

    Explanation

    Reference: https://help.salesforce.com/articleView?id=security_apex_sharing_reasons.htm&type=5

    Source: Adapted from community discussion — Dev_Bond_ZA

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PD2 practice, question 101. 279 questions available.