Evaluate Your Skills in C#, LINQ, EF, Web API, and MVC

This quiz is designed to test your knowledge and expertise in core areas of C# programming, LINQ, Entity Framework (EF), Web API, and MVC (Model-View-Controller). It combines conceptual, coding, and practical questions to provide a comprehensive evaluation of your skills.

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Web API Beginner

This quiz is designed for beginners who want to test and enhance their understanding of Web APIs.

1 / 10

1. What does REST stand for in Web APIs?

1. Remote State Transfer

2. Representational State Transfer

3. Representational state Template

4. Reliable State Transfer

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2. What does Web API stand for?

1. Web Application Programming Integration

2. Web Application Programming Interface

3. Web Application Protocol Integration

4. Web Advanced Protocol Integration

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3. In a Web API, what does HTTP GET method do?

1. Updates an existing resource on the server.

2. Retrieves data from the server.

3. Create new resource on server

4. None of above

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4. Which HTTP method is used to update an existing resource?

1. POST

2. PUT

3. GET

4. HEAD

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5. What is the primary purpose of an API key in Web APIs?

1. To execute server-side scripts

2. To manage database connections

3. To encrypt data

4. To authenticate users

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6. Which status code indicates a successful request?

1. 400

2. 404

3. 200

4. 500

7 / 10

7. Which protocol is primarily used in Web API communication?

1. FTP

2. SMTP

3. HTTP

4. IMAP

8 / 10

8. Which of these tools is commonly used for testing Web APIs?

1. Visual Studio

2. Eclips

3. Postman

4. Visual Studio code

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9. What is the purpose of the HTTP POST method in Web API?

1. Retrieve a resource

2. Update a resource

3. Create a new resource

4. Delete a resource

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10. What is the default response format of a Web API?

1. HTML

2. XML

3. JSON

4. TEXT

Your score is

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Congratulations on finishing the Web API quiz !!! Keep practicing, and you'll continue to enhance your skills.

Web API Intermediate Level

This quiz is designed to test and enhance your intermediate-level knowledge of Web APIs. It will cover key concepts such as HTTP methods, status codes, authentication, and more. Take your time to answer each question, and don't worry if you're unsure—this is a great opportunity to learn and grow your understanding.

Good luck, and let's get started!

1 / 10

1. What does the Authorization header in an HTTP request typically contain?

The credentials for authenticating the user

The body of the request

The endpoint of the API

The format of the response

2 / 10

2. Which of the following is true about RESTful APIs?

They are based on HTTP methods such as GET, POST, PUT, and DELETE.

RESTful APIs rely heavily on SOAP protocol

RESTful APIs require a specific data format like XML

RESTful APIs use only HTTP POST requests.

3 / 10

3. What does CORS stand for in the context of Web APIs?

Cross-Origin Request Sharing

Cross-Origin Request Security

Cross-Origin Resource Sharing

Cross-Resource Origin Sharing

4 / 10

4. What does the HTTP status code 500 indicate?

Resource moved permanently

Internal server error

Unauthorized access

Bad request

5 / 10

5. Which HTTP status code is returned when a requested resource is not found?

400

401

409

404

6 / 10

6. Which HTTP status code is typically returned when an API request is made with invalid input parameters?

404

401

400

500

7 / 10

7. Which of the following methods is commonly used to pass parameters in a URL for a GET request in a RESTful API?

Body

Header

Query string

8 / 10

8. What does the term "endpoint" refer to in the context of a Web API?

A part of the server that handles errors

The user interface for interacting with the API

A URL that defines the interaction point for the API

A database table used by the API

9 / 10

9. What is the purpose of the Authorization header in an API request?

To provide the credentials for accessing the API

To specify the query parameters for the request

To define the content encoding

To define the data type expected by the client

10 / 10

10. Which HTTP method is used to update an existing resource in a Web API?

GET

PUT

POST

DELETE

Your score is

The average score is 80%

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Web API Advanced Level

Web API MCQs designed for experienced developers to test their knowledge of advanced concepts, industry best practices, and modern features:

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1. What is the key difference between PUT and PATCH in a RESTful Web API?

PUT replaces the entire resource, while PATCH updates only specific fields.

PUT is idempotent, while PATCH is not.

PATCH is used for creating resources, while PUT is not.

PUT supports caching, while PATCH does not.

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2. In Web APIs, what is the purpose of implementing pagination?

To optimize API response times for large datasets.

To minimize HTTP header sizes.

To secure the API using rate limiting.

To support batch processing of requests.

3 / 10

3. Which HTTP status code is most appropriate for a resource conflict, such as attempting to create a resource that already exists?

400 Bad Request

401 Unauthorized

409 Conflict

403 Forbidden

4 / 10

4. Which of the following HTTP headers is used for optimistic concurrency control in Web APIs?

Content-Type

Cache-Control

If-Match

5 / 10

5. Which HTTP method is considered unsafe but idempotent in RESTful Web APIs?

POST

PUT

GET

DELETE

6 / 10

6. In ASP.NET Core Web API, how is dependency injection typically configured?

By using a custom IoC container.

By directly creating object instances in the controller.

By adding services in the Program.cs file using AddTransient, AddScoped, or AddSingleton.

By defining dependencies in the appsettings.json file.

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7. In ASP.NET Core, which filter is typically used to handle global exception handling in a Web API?

Action Filter

Authorization Filter

Exception Filter

Resource Filter

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8. In RESTful APIs, what does the term "resource representation" typically refer to?

The URL used to access a resource.

The format (e.g., JSON, XML) in which resource data is exchanged.

The database schema for the resource.

The HTTP method used to interact with a resource.

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9. What is the role of the UseRouting middleware in ASP.NET Core Web API?

To define authorization policies for API endpoints.

To apply global exception handling.

To handle CORS requests.

To match incoming requests to corresponding route templates.

10 / 10

10. In ASP.NET Core Web API, which method is used to explicitly set the response status code in a controller action?

SetStatusCode()

StatusCode()

Response.StatusCode

HttpContext.ResponseCode

Your score is

The average score is 70%

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