Describe How the Salesforce Platform Features Map to the MVC Pattern. PLATFORM-DEVELOPER-I Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A developer is building a custom Salesforce page that displays a list of Accounts with their related Contacts. The page must show data from the database and allow users to click a button to refresh the list. Which combination of Salesforce features correctly maps to the MVC pattern?

   • AA Visualforce page for Model, an Apex controller for View, and a custom object for Controller
   • BAccount and Contact objects for Model, a Lightning Web Component for View, and an Apex class with @AuraEnabled methods for Controller
   • CA Lightning Web Component for Model, a custom object for View, and an Apex class for Controller
   • DAn Apex class for Model, a Visualforce page for Controller, and a custom object for View
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2. 17foundation · easy

   What is the primary purpose of the Model-View-Controller (MVC) pattern in software development?

   • ATo eliminate the need for user interface code by generating views automatically from database schemas.
   • BTo ensure that all business logic is written in the database layer for maximum performance.
   • CTo combine data, logic, and presentation into a single component to reduce the number of files in an application.
   • DTo separate an application into three interconnected components so that data, logic, and presentation can be developed and modified independently.
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4. 18foundation · easy

   What is the main responsibility of a Lightning Web Component in the MVC pattern?

   • ATo handle user input and update the Model
   • BTo display data and capture user input
   • CTo enforce business rules and validation
   • DTo store data in the Salesforce database
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5. 19foundation · easy

   In Salesforce, what is the primary role of a custom object in the MVC pattern?

   • ATo define the user interface for displaying records
   • BTo handle user input and execute business logic
   • CTo store data and represent the Model layer
   • DTo control access to data through sharing rules
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6. 20application · medium

   A team is designing a new Salesforce page to let sales reps enter order details. They want to reuse the same UI across multiple record types and ensure the UI only handles display and user input, with all business logic in a separate layer. Which approach best follows the MVC pattern?

   • ACreate a Lightning App Builder page with a custom object and no Apex code
   • BBuild a single Visualforce page that contains all the business logic in its controller extension
   • CCreate a Lightning Web Component for the UI and an Apex class with @AuraEnabled methods for data operations and logic
   • DUse a custom object to store the data and embed all logic in the object's validation rules
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