Describe the Benefits of the Lightning Component Framework. PLATFORM-DEVELOPER-I Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A Salesforce admin notices that a custom Visualforce page is slow to load because it performs many server round-trips. The development team is considering migrating to Lightning components to improve performance. Which performance advantage of the Lightning Component framework is most relevant to this scenario?

   • AThe framework compiles all code to native machine code for maximum speed
   • BClient-side rendering reduces server round-trips and improves perceived performance
   • CServer-side rendering is faster than client-side rendering in all cases
   • DAutomatic caching of all server data eliminates the need for any server calls
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2. 2application · medium

   A Salesforce developer is building a new Lightning app and wants to speed up development by using pre-built UI elements. They also want to ensure consistency across the app. Which feature of the Lightning Component framework should they leverage?

   • AThe rich ecosystem of base Lightning components
   • BThe automatic generation of Apex controllers for every component
   • CThe ability to write all UI in JavaScript without any markup
   • DThe requirement to use only custom components to ensure uniqueness
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4. 3expert · hard

   A development team is evaluating whether to migrate a complex Visualforce page to Lightning components. The page includes a custom wizard with multiple steps, each with its own logic and UI. The team is concerned about the effort required to maintain the page and wants to improve performance. Which benefit of the Lightning Component framework is most compelling for this migration?

   • AThe guarantee that Lightning components are always faster than Visualforce
   • BThe ability to break the wizard into separate components that can be developed and loaded independently
   • CThe ability to use Apex controllers directly in the client-side code
   • DThe automatic conversion of Visualforce pages to Lightning components
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5. 4foundation · easy

   How does the component-based architecture of the Lightning Component framework promote maintainability?

   • ABy requiring all code to be written in a single, large file for easier debugging.
   • BBy preventing any changes to components after they are deployed.
   • CBy automatically generating documentation for every component.
   • DBy allowing developers to update a component in one place, and the change is reflected everywhere the component is used.
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6. 5foundation · easy

   Which technique does the Lightning Component framework use to handle data efficiently and improve performance?

   • AAvoiding any server communication after the initial load.
   • BCaching all data in the browser indefinitely.
   • CLoading all data for the entire application at startup.
   • DUsing server-side actions to fetch only the data needed for a specific component.
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