Describe the Considerations When Creating Custom Controllers and Controller Extensions. PLATFORM-DEVELOPER-II Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   A developer wants to add a custom action to a Visualforce page that uses a standard controller for the Account object. Which component should be used?

   • AA custom controller
   • BA custom component
   • CA controller extension
   • DA JavaScript button
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2. 17application · medium

   A developer is building a Visualforce page with a custom controller that displays a list of Opportunity records and allows inline editing. The page also has a search filter. The developer notices that the page's view state is very large. Which change is most likely to reduce view state?

   • AStore the search filter criteria in a transient variable.
   • BReduce the number of fields displayed on the page.
   • CUse a standard controller instead of a custom controller.
   • DMark the list of Opportunities as transient.
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4. 18application · medium

   A custom controller for a Visualforce page queries Account records. The page is used by users with different sharing permissions. What should the developer consider to ensure users only see records they have access to?

   • AAdd a WHERE clause to filter records by owner.
   • BUse 'without sharing' to bypass sharing rules for better performance.
   • CUse the standard controller to automatically handle sharing.
   • DUse the 'with sharing' keyword on the controller class.
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5. 19foundation · easy

   By default, what sharing behavior does a custom controller execute with?

   • AInherited sharing
   • BMixed sharing
   • CWith sharing
   • DWithout sharing
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6. 20foundation · easy

   Which scenario is a typical use case for a custom controller in Visualforce?

   • AAdding a custom button to a standard record page.
   • BExtending the functionality of a standard controller for a standard object.
   • COverriding the standard Save action on a standard object's edit page.
   • DCreating a page that displays data from multiple unrelated objects with custom actions.
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