backend development for .net full stack coursera week 3 answers

WebAPI Practice Quiz

1. What does REST stand for?

  • Remote Enterprise Service Technology.
  • Relational Enterprise Service Technology.
  • Representational State Transfer.
  • Remote Environment Service Technology.

2. What is the purpose of exception handling in software development?

  • Exception handling is used to handle runtime errors and prevent program crashes.
  • Exception handling is a technique for optimizing code performance and memory usage.
  • Exception handling is a design pattern used to enforce modularity and code reusability.
  • Exception handling is a method for securing sensitive data and preventing unauthorized access.

3. What is the difference between WCF and Web API?

  • WCF is used for building RESTful web services, while Web API is used for building SOAP-based web services.
  • WCF uses HTTP as the underlying protocol, while Web API uses TCP.
  • WCF provides more features for building enterprise-level services, while Web API is a lightweight framework for building RESTful services.
  • There is no difference between WCF and Web API. They are interchangeable.

4. What is Postman?

  • A code editor for writing JavaScript.
  • A database management tool for MySQL.
  • A tool for testing and debugging web APIs.
  • A front-end framework for building responsive web applications.

CRUD Operations Practice Quiz

5. What is routing in ASP.NET?

  • A way to manage server-side data validation.
  • A way to map URLs to application resources.
  • A way to manage client-side data validation.
  • A way to manage application configuration settings.

6. What are route constraints in ASP.NET?

  • Rules that limit the types of HTTP methods that can be used with a particular route.
  • Rules that limit the types of data that can be passed as parameters in a particular route.
  • Rules that limit the number of parameters that can be passed in a particular route.
  • Rules that limit the types of responses that can be returned by a particular route.

7. What is an action result in ASP.NET?

  • A type of validation used to ensure that user input is valid before it is processed.
  • A type of HTTP response returned by a controller action.
  • A type of attribute that can be applied to controller actions.
  • A type of routing rule used to map URLs to controller actions.

8. What is content negotiation in ASP.NET?

  • The process of determining whether a request is coming from a human user or a bot.
  • The process of determining the appropriate HTTP status code to return for a particular response.
  • The process of selecting the most appropriate representation of a resource based on the client’s preferences.
  • The process of caching HTTP responses to improve application performance.

9. What are media type formatters in ASP.NET?

  • Components that handle the routing of incoming requests to the appropriate controller action.
  • Components that convert HTTP responses into different media types, such as XML, JSON, or binary.
  • Components that handle content negotiation to select the appropriate media type for a response
  • Components that handle data validation and return error responses when validation fails.

Advance WebAPI Practice Quiz

10. What is ASP.NET Web API?

  • A front-end framework for building responsive web applications.
  • An ORM framework for .NET applications.
  • A framework for building HTTP services that can be consumed by a wide range of clients.
  • A cloud-based platform for building and deploying web applications.

11. What is the purpose of the [HttpGet] attribute in ASP.NET Web API?

  • To specify the HTTP verb for an action method that responds to GET requests.
  • To specify the HTTP verb for an action method that responds to POST requests.
  • To specify the HTTP verb for an action method that responds to DELETE requests.
  • To specify the HTTP verb for an action method that responds to PUT requests.

12. What is the purpose of the IHttpActionResult interface in ASP.NET Web API?

  • To define a base class for Web API controllers.
  • To provide a way to return a standard HTTP response from an action method.
  • To handle content negotiation to select the appropriate media type for a response.
  • To provide a way to specify routing for Web API controllers.

13. What is the purpose of the [FromBody] attribute in ASP.NET Web API?

  • To specify that the parameter for an action method should be bound using the request body.
  • To specify that the parameter for an action method should be bound using the query string.
  • To specify that the parameter for an action method should be bound using the request headers.
  • To specify that the parameter for an action method should be bound using the route data.

14. What is the purpose of the HTTP GET method in ASP.NET Web API?

  • To create a new resource.
  • To read an existing resource.
  • To update an existing resource.
  • To delete an existing resource.
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