PD2 practice questions 121–130

1. Question 121 · 279 in bank

   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?

   • AUse the transient keyword in the Apex code when querying the Account records
   • BUse JavaScript remoting to query the accounts
   • CUse the standard Account List controller and implement pagination
   • DUpload a third-party data table library as a static resource

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   Answer: C

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2. Question 122 · 279 in bank

   Customer billing data must be added and updated into Salesforce from a remote system on weekly basis. Additionally, customer activity information must be extracted from Salesforce and put it into an on-premises data warehouse on a weekly basis. Which approach should be used to import data into Salesforce and export data out of Salesforce, taking into consideration that these imports and exports can interfere with end-user operations during business hours and involve large amounts of data?

   • ABatch Apex, where Salesforce pushes data to and pulls data from the remote systems
   • BReplication via third-party ETL to push data into Salesforce and pull data out in batches
   • CSalesforce Connect to push data to and pull data from the remote systems
   • DCall-in directly from each remote system to Salesforce APIs to push and pull the data

   Show answer

   Answer: B

   References

   • developer.salesforce.com documentation
   • Salesforce Help
   • developer.salesforce.com documentation

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3. Question 123 · 279 in bank

   A company needs to automatically delete sensitive information after seven years. This could delete almost a million records every day. How can this be achieved?

   • AUse aggregate functions to query for records older than seven years, and then delete the AggregateResult objects
   • BPerform a SOSL statement to find records older than 7 years, and then delete the entire result set
   • CSchedule a batch Apex process to run every day that queries and deletes records older than seven years
   • DSchedule an @future process to query records older than seven years, and then recursively invoke itself in 1,000 record batches to delete them

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   Answer: C

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4. Question 124 · 279 in bank

   An org contains two custom objects: Building__c and Office__c. Office__c has a Lookup field to Building__c. A developer is asked to automatically populate the Number_of_Offices__c field on the Building__c object with the count of related Office__c records anytime an Office__c record is created or deleted. The developer cannot modify the field types. Which solutionmeets the requirements?

   • AFlow
   • BWorkflow
   • CApex Trigger
   • DProcess Builder

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   Answer: B

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5. Question 125 · 279 in bank

   Which scenario requires a developer to use an Apex callout instead of Outbound Messaging?

   • AThe target system uses a REST API.
   • BThe callout needs to be asynchronous.
   • CThe target system uses a SOAP API.
   • DThe callout needs to be invoked from a Workflow Rule.

   Show answer

   Answer: A

   Explanation

   Outbound Messaging is designed for SOAP-based web services. If the target system has a REST API, an Apex callout is required.

   Source: Adapted from community discussion — [Removed]

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6. Question 126 · 279 in bank

   A developer has a 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 ‘Ozone Electronics’?

   • AAccount a = [SELECT ID, Name, Type FROM Account WHERE name=‘Ozone Electronics’]; list lContacts = [SELECT firstname, lastname FROM Contact WHERE accounted=:a.ID];
   • BAccount a = [SELECT ID, Name, Type, (SELECT FirstName, LastName FROM Contacts) FROM Account WHERE name=‘Ozone Electronics’ LIMIT 1];
   • Clist lContacts = new list(); for (Contact c :[SELECT firstname, lastname, Account.Name, Account.ID, Account.Type FROM Contact WHERE Account.Name=‘ozone electronics’]) ( lContacts.add(c); )
   • Dlist lAccounts = [SELECT ID, Name, Type FROM Account JOIN (SELECT ID, firstname, lastname FROM Contact WHERE contact.account.name = ‘ozone electronics’)];

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   Answer: B

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7. Question 127 · 279 in bank

   Just prior to a new deployment, the Salesforce Administrator, who configured a new order fulfillment process feature in a developer sandbox, suddenly left the company. As a part of the UAT cycle, the users had fully tested all of the changes in the sandbox and signed off on them; making the Order fulfillment feature ready for its go-live in the production environment. Unfortunately, although a Change Set was started, it was not completed by the former administrator. A developer is brought in to help finish the deployment. What should the developer do to identify the configuration changes that need to be moved into production?

   • AIn Salesforce setup, look at the last modified date for every object to determine which should be added to the Change Set.
   • BLeverage the Setup Audit Trail to review the changes made by the departed Administrator and identify which changes should be added to the Change Set.
   • CSet up Continuous Integration and a Git repository to automatically merge all changes from the sandbox metadata with the production metadata.
   • DUse the Metadata API and a supported development IDE to push all of the configuration from the sandbox into production to ensure no changes are lost.

   Show answer

   Answer: B

   Explanation

   In real life he should take a look on requirements included in sprint scope and them take a look on particular components and create bundle.

   Source: Adapted from community discussion — M4JK3LSON

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8. Question 128 · 279 in bank

   Select 2

   Which two settings must be defined in order to update a record of a junction object? (Choose two.)

   • ARead/Write access on the primary relationship
   • BRead/Write access on the junction object
   • CRead/Write access on the secondary relationship
   • DRead access on the primary relationship

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   Answer: BC

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9. Question 129 · 279 in bank

   A custom Visualforce controller calls the ApexPages.addMessage() method, but no messages are rendering on the page. Which component should be added to the Visualforce page to display the message?

   • A<apex:message for="info"/>
   • B<apex:facet name="messages" />
   • C<apex:pageMessage severity="info" />
   • D<apex:pageMessages />

   Show answer

   Answer: D

   Explanation

   it is D because you can only use ApexPages.addMessage() to add to C is only single message render the markup value, you cant run addMessage to add more message to it

   Source: Adapted from community discussion — rufusroffie

   References

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

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10. Question 130 · 279 in bank

    Select 3

    

    A company has the Lightning Component above that allows users to click a button to save their changes and 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 three.)

    • AEnable Debug Mode for Lightning components for the user.
    • BUse console.log() messages in the JavaScript.
    • CUse Developer Console to view debug log.
    • DUse the browser’s dev tools to debug the JavaScript.
    • EUse Developer Console to view checkpoints.

    Show answer

    Answer: ABD

    References

    • developer.salesforce.com documentation

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Keyboard:J Kmove between questionsA–Dselect an answerRshow or hide the answer← →change page

PD2 practice, question 121. 279 questions available.