Free Access Salesforce.PDII.v2022-05-12.q296 Practice Test (Page 52)

Question 251

A developer must perform a complex SOQL query that joins two objects in a Lightning component. how can the Lightning component execute the query?

A.Use the SaJesforce Streaming API to perform the SOQL query.

B.Invoke an Apex dass with the method annotated as ©AiraEnabled to perform the query.

C.Create a Process Builder to execute the query and invoke from the Lightning component.

D.Write the query in a custom Lightning web component wrapper and invoke from the Lightning component.

Question 252

Choose the correct definition for <apex:actionSupport>.

A.Can 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

B.Signifies which components should be processed by the server when an AJAX request is generated

C.Allows 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

D.Adds AJAX support to another component (e.g. onClick, onMouseUp, onFocus, etc.)

E.Sends an AJAX request according to the time interval you specify. If this ever gets re-rendered, it resets

Question 253

A developer receives a LimitException: Too many query rows: 50001 error when running code. What debugging approach using the Developer Console provides the fastest and most accurate mechanism to identify a specific component that may be returning an unexpected number of rows?

A.Filter the Debug Log on SOQL_EXECUTE_END statements to track the results of each SOQL Query.

B.Use the Execution Overview to see the number of rows returned by each Executed Unit.

C.Count the number of Row Limit warning messages in the Debug Logs.

D.Add System.debug (System.getoueryRows () to the code to track SOQL usage.

Question 254

Which two relationship queries use the proper syntax? Choose 2 answers

A.SELECT Id, Name, Account __r.Name FROM Contact WHERE Account r.Industry = 'Media'

B.SELECT Name, (SELECT LastName FROM Contacts__r) FROM Account

C.SELECT Id, Name, Account.Name FROM Contact WHERE Account.Industry = 'Media'

D.SELECT Name, (SELECT LastName FROM Contacts) FROM Account

Question 255

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.Move the prerequisite reference data setup to a TestDataFactory and call that from each test method.

B.Move the prerequisite reference data setup to a @testSetup method in the test class.

C.Move the prerequisite reference data setup to a static method in the test class and call that from each test method.

D.Move the prerequisite reference data setup to the constructor for the test class.

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Question 251

Question 252

Question 253

Question 254

Question 255

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