MCQs on Customizing and Extending Swagger | Swagger Multiple Choice Questions| Swagger MCQ questions and answers

Swagger, now part of the OpenAPI ecosystem, is a powerful tool for API documentation and testing. In this article, we present 30 Swagger MCQ questions and answers covering customization of Swagger UI, adding plugins and extensions, and managing versioning and documentation updates. Use these questions to enhance your understanding and skills in Swagger.

1. Customizing Swagger UI

1. What is Swagger UI primarily used for?
   a) Creating APIs
   b) Testing APIs visually
   c) Exporting databases
   d) Writing API code
2. How can you customize the default layout of Swagger UI?
   a) By using the layout parameter in the configuration
   b) By modifying the HTML directly
   c) Through the Swagger CLI
   d) By using the Swagger Dashboard
3. Which configuration option is used to set a custom theme for Swagger UI?
   a) themeConfig
   b) uiTheme
   c) styles
   d) customCss
4. How do you enable “Try It Out” functionality in Swagger UI?
   a) Set tryOut: true in the configuration
   b) Set docExpansion to “full”
   c) Use the supportedSubmitMethods option
   d) Enable it in the API specification
5. What is the purpose of the docExpansion option in Swagger UI?
   a) To expand or collapse API endpoints
   b) To generate documentation
   c) To restrict API access
   d) To configure plugins

2. Adding Plugins and Extensions

6. What is the role of plugins in Swagger UI?
   a) To customize API behavior
   b) To enhance or modify the UI functionality
   c) To export API data
   d) To secure API endpoints
7. Which JavaScript method is commonly used to add custom plugins to Swagger UI?
   a) SwaggerUI.addPlugin
   b) SwaggerUI.init
   c) SwaggerUI.plugin
   d) SwaggerUI.extend
8. Can Swagger UI support third-party plugins?
   a) Yes, via the plugin system
   b) No, it supports only built-in plugins
   c) Only for Pro versions
   d) Only through manual integration
9. How can you define a custom plugin for Swagger UI?
   a) By creating a function that returns hooks and components
   b) By writing additional YAML definitions
   c) By modifying the Swagger CLI
   d) By changing the swagger.json file
10. What is the SwaggerPlugin object used for?
    a) To configure new Swagger servers
    b) To define and register plugins for Swagger UI
    c) To manage API versioning
    d) To store environment variables

3. Versioning and Documentation Updates

11. Why is API versioning important?
    a) To improve security
    b) To support backward compatibility
    c) To generate faster APIs
    d) To reduce server load
12. Which common approach is used for versioning APIs in Swagger?
    a) Embedding version numbers in the endpoint URLs
    b) Adding version headers in requests
    c) Using separate documentation files for each version
    d) All of the above
13. How can you display multiple API versions in Swagger UI?
    a) By creating separate configurations for each version
    b) By merging versions into a single YAML file
    c) By using the versionManager plugin
    d) By linking versioned endpoints in the UI
14. Which parameter in Swagger specifications indicates the API version?
    a) info.version
    b) api.version
    c) swagger.version
    d) apiDocs.version
15. What should you update first when adding new API endpoints in Swagger?
    a) The server URL
    b) The paths section in the specification
    c) The info.title field
    d) The UI configuration
16. What does the servers section in Swagger define?
    a) API paths
    b) Endpoint URLs for different environments
    c) Version control methods
    d) Plugin configurations
17. How do you ensure users can differentiate between API versions in Swagger?
    a) By specifying version tags in the UI
    b) By highlighting changes in the Swagger.json file
    c) By enabling version filters in the documentation
    d) By adding notes to the API description
18. What is the benefit of separating documentation for different API versions?
    a) Reduces file size
    b) Simplifies maintenance and reduces confusion
    c) Increases API performance
    d) Enhances security
19. Can Swagger UI support automatic updates for documentation?
    a) Yes, by using APIs or automation scripts
    b) No, manual updates are required
    c) Only in Pro versions
    d) Only for static files
20. What is a common practice when deprecating an old API version?
    a) Highlight it as deprecated in the documentation
    b) Remove it from the Swagger specification
    c) Migrate users to the new version silently
    d) Keep it active indefinitely

General Customization and Debugging

21. Can you change the Swagger UI title?
    a) Yes, by modifying the info.title field in the specification
    b) No, the title is fixed
    c) Only in the Pro version
    d) Only by editing HTML directly
22. What is the purpose of validatorUrl in Swagger UI?
    a) To validate API responses
    b) To validate the Swagger/OpenAPI specification
    c) To check server status
    d) To enable debugging
23. How do you hide specific endpoints in Swagger UI?
    a) By marking them as private in the configuration
    b) By removing them from the specification
    c) By disabling them in the Swagger CLI
    d) By using plugins
24. What file format is typically used for Swagger documentation?
    a) JSON or YAML
    b) XML
    c) CSV
    d) HTML
25. Can you add descriptions for parameters in Swagger?
    a) Yes, using the description field
    b) No, only for endpoints
    c) Only for required parameters
    d) Only for response objects
26. How do you customize the Swagger UI favicon?
    a) By replacing the default favicon.ico file
    b) By editing the Swagger YAML file
    c) Through the API specification
    d) By disabling favicons in the settings
27. Which tool generates Swagger documentation from code annotations?
    a) Swagger Codegen
    b) Swashbuckle
    c) OpenAPI Generator
    d) All of the above
28. Can Swagger UI display example responses for endpoints?
    a) Yes, if specified in the documentation
    b) No, Swagger does not support examples
    c) Only for JSON responses
    d) Only with third-party plugins
29. What is the purpose of the externalDocs field in Swagger?
    a) To link additional resources or external documentation
    b) To add API changelogs
    c) To reference deprecated APIs
    d) To manage security schemes
30. Can Swagger UI support multilingual documentation?
    a) Yes, using plugins and configurations
    b) No, only English is supported
    c) Only with separate instances for each language
    d) Only in the enterprise version

Answer Table