PD2 practice questions 61–70

1. Question 61 · 279 in bank

   How long is field history retained?

   • A18 Months
   • B12 Months
   • C24 Months
   • D6 Months
   • E36 Months

   Show answer

   Answer: A

   Explanation

   Field history data is retained for up to 18 months through your org, and up to 24 months via the API. Field history tracking data doesn't count against your Salesforce org's data storage limits.

   Source: Adapted from community discussion — Liquad

   References

   • Salesforce Help

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2. Question 62 · 279 in bank

   Choose the correct definition for <apex:pageMessage>.

   • AStandard Salesforce formatting, throws a specific message on a page
   • BStandard Salesforce formatting, shows all errors that occur on page. Can add more messages through the "ApexPages.addMessage" function
   • CA single message, without formatting, that can be associated with a specific component on the page
   • DNo formatting; displays all errors on a page

   Show answer

   Answer: A

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3. Question 63 · 279 in bank

   Choose the correct definition for <apex:messages>.

   • AStandard Salesforce formatting, throws a specific message on a page
   • BStandard Salesforce formatting, shows all errors that occur on page. Can add more messages through the "ApexPages.addMessage" function
   • CA single message, without formatting, that can be associated with a specific component on the page
   • DNo formatting; displays all errors on a page

   Show answer

   Answer: D

   References

   • developer.salesforce.com documentation

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4. Question 64 · 279 in bank

   Choose the correct definition for <apex:message>.

   • AStandard Salesforce formatting, throws a specific message on a page
   • BStandard Salesforce formatting, shows all errors that occur on page. Can add more messages through the "ApexPages.addMessage" function
   • CA single message, without formatting, that can be associated with a specific component on the page
   • DNo formatting; displays all errors on a page

   Show answer

   Answer: C

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5. Question 65 · 279 in bank

   Choose the correct definition for <apex:actionFunction>.

   • AAllows for controller methods to be called directly from Javascript. Must be encapsulated in <apex:form> tags. Unlike actionSupport, these function<apex:actionPoller>s can be called directly from Javascript code
   • BSends an AJAX request according to the time interval you specify. If this ever gets re-rendered, it resets
   • CAdds AJAX support to another component (e.g. onClick, onMouseUp, onFocus, etc.)
   • DCan be associated with an AJAX request (actionFunction/actionSupport/actionPoller) and shows content conditionally depending on the status of the request (in progress/complete). Use the "id" field to specify name; use "status" field on related components to connect them
   • ESignifies which components should be processed by the server when an AJAX request is generated

   Show answer

   Answer: A

   Explanation

   A: provides support for invoking controller action methods directly from JavaScript code using an AJAX request. An component must be a child of an https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_compref_actionFunction.htm

   Source: Adapted from community discussion — karlikos

   References

   • developer.salesforce.com documentation

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6. Question 66 · 279 in bank

   Choose the correct definition for <apex:actionPoller>.

   • AAllows for controller methods to be called directly from Javascript. Must be encapsulated in <apex:form> tags. Unlike actionSupport, these function<apex:actionPoller>s can be called directly from Javascript code
   • BSends an AJAX request according to the time interval you specify. If this ever gets re-rendered, it resets
   • CAdds AJAX support to another component (e.g. onClick, onMouseUp, onFocus, etc.)
   • DCan be associated with an AJAX request (actionFunction/actionSupport/actionPoller) and shows content conditionally depending on the status of the request (in progress/complete). Use the "id" field to specify name; use "status" field on related components to connect them
   • ESignifies which components should be processed by the server when an AJAX request is generated

   Show answer

   Answer: B

   Explanation

   B: sends an AJAX request to the server according to a time interval, must be within the region it acts upon https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_compref_actionPoller.htm

   Source: Adapted from community discussion — karlikos

   References

   • developer.salesforce.com documentation

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7. Question 67 · 279 in bank

   A developer wishes to improve runtime performance of Apex calls by caching results on the client. What is the best way to implement this?

   • ADecorate the server-side method with @AuraEnabled(cacheable=true).
   • BSet a cookie in the browser for use upon return to the page.
   • CCall the setStorable() method on the action in the JavaScript client-side code.
   • DDecorate the server-side method with @AuraEnabled(storable=true).

   Show answer

   Answer: A

   Explanation

   Prior to Winter ’19, to cache data returned from an Apex method, you had to call setStorable() in JavaScript code on every action that called the Apex method. Now you can mark the Apex method as storable (cacheable) and get rid of any setStorable() calls in JavaScript code.

   Source: Adapted from community discussion — NiuNiuG

   References

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

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8. Question 68 · 279 in bank

   Choose the correct definition for <apex:actionSupport>.

   • AAllows for controller methods to be called directly from Javascript. Must be encapsulated in <apex:form> tags. Unlike actionSupport, these function<apex:actionPoller>s can be called directly from Javascript code
   • BSends an AJAX request according to the time interval you specify. If this ever gets re-rendered, it resets
   • CAdds AJAX support to another component (e.g. onClick, onMouseUp, onFocus, etc.)
   • DCan be associated with an AJAX request (actionFunction/actionSupport/actionPoller) and shows content conditionally depending on the status of the request (in progress/complete). Use the "id" field to specify name; use "status" field on related components to connect them
   • ESignifies which components should be processed by the server when an AJAX request is generated

   Show answer

   Answer: C

   References

   • developer.salesforce.com documentation

   Next question

9. Question 69 · 279 in bank

   What is the transaction limit for the number of records for SOQL queries?

   • A5,000
   • B20,000
   • C50,000
   • D10,000
   • EThere is no limit

   Show answer

   Answer: C

   References

   • developer.salesforce.com documentation

   Next question

10. Question 70 · 279 in bank

    What is the transaction limit for the number of records using QueryLocator?

    • A50,000
    • B50,000,000
    • C100,000
    • D5,000,000
    • EThere is no limit

    Show answer

    Answer: B

    Explanation

    "Scope" parameter in "executeBatch" can be set up to 2,000 records

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PD2 practice, question 61. 279 questions available.