1. 1. What does LWC stand for?

    • a) Lightning Web Connector
    • b) Lightning Web Components
    • c) Lightning Widget Components
    • Answer: Lightning Web Components

  2. 2. Which file is used for the JavaScript code in a Lightning Web Component?

    • a) .html
    • b) .js
    • c) .xml
    • Answer: .js

  3. 3. What is the purpose of the connectedCallback lifecycle hook?

    • a) To handle button clicks
    • b) To manipulate the component's DOM after it is connected
    • c) To define component attributes
    • Answer: To manipulate the component's DOM after it is connected

  4. 4. How do you pass data from a parent component to a child component in LWC?

    • a) Using a Lightning event
    • b) Using a method call
    • c) Through the component's HTML
    • Answer: Using a Lightning event

  5. 5. What is the primary role of Apex in Lightning Web Components?

    • a) Styling the components
    • b) Handling server-side logic and data retrieval
    • c) Defining component structure
    • Answer: Handling server-side logic and data retrieval

  6. 6. How can you conditionally render content in LWC?

    • a) Using JavaScript if statements
    • b) Using the template if:true directive
    • c) Both a and b
    • Answer: Both a and b

  7. 7. What does the term "shadow DOM" refer to in LWC?

    • a) A hidden area in the Salesforce database
    • b) A secure connection to the Lightning Platform
    • c) Isolated DOM tree for a Lightning Web Component
    • Answer: Isolated DOM tree for a Lightning Web Component

  8. 8. Which tool is commonly used for testing Lightning Web Components?

    • a) Mocha
    • b) Jest
    • c) Karma
    • Answer: Jest

  9. 9. How do you deploy a Lightning Web Component to a Salesforce org?

    • a) Copy-pasting the code into the Developer Console
    • b) Using Salesforce CLI commands
    • c) Sending it as an email attachment to Salesforce support
    • Answer: Using Salesforce CLI commands

  10. 10. What is the purpose of the @api decorator in LWC?

    • a) To define a public property
    • b) To hide the component from other modules
    • c) To specify the component's API version
    • Answer: To define a public property