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Many companies build web apps, mobile apps, and cloud services. These systems exchange data through APIs. A developer role often requires clear knowledge of API structure, request methods, response formats, and security methods.  \nInterview panels test both concept knowledge and real work experience. You face questions about REST APIs, [HTTP methods](HTTP methods), authentication, and error handling. Strong preparation improves performance during technical rounds. You answer with clarity and confidence.  \nThis article presents common API Interview Questions and Answers used in developer interviews. Each question focuses on practical knowledge used during software development projects. Use these questions to review key topics before your next interview.  \nList of API Interview Questions for Freshers  \n1. What’s an API?  \n2. What advantages can RESTful web services offer?  \n3. What is Web API?  \n4. What are the uses of web APIs?  \n5. Which are the primary return types that the Web API supports?  \n6. What is Web API 2. 0?  \n7. What are JSON and XML?  \n8. Who can use Web API?  \n9. In terms of an API, what is CRUD?  \n10. What distinguishes web services from APIs?  \n11. Which styles are available for web API creation?  \n12. What does API testing entail?  \n13. Which tools do software engineers use for API testing?  \nAPI Technical Interview Questions and Answers for Freshers  \n1. What’s an API?  \nApplication Programming Interface is referred to as an API. It’s a kind of software that enables data or functionality sharing and communication between two apps. It is made up of several components, such as subroutines, which enable it to carry out the intended tasks.  \n2. What advantages can RESTful web services offer?  \nBecause they are simple to maintain, software developers who create APIs for web-based applications frequently use RESTful web services.  \nThey are adaptable, lightweight, and simple to scale, should a software engineer see advancements they’d like to see made.  \n3. What is Web API?  \nAs the name implies, a Web API (Application Programming Interface) is an API that can be accessed via the [HTTP protocol over](HTTP protocol over) the Internet. It’s a mechanism that server code can use to read and push data to a server. It can be created or developed with various technologies, including ASP. NET, Java, and others.  \n4. What are the uses of web APIs?  \nUses for Web APIs:  \n● It has extra layers that do nothing more than standardize communications and offer various input and output formatting options.  \n● It is compatible with several web application formats, including ASP. NET Web Forms, and ASP. NET MVC.  \n● Web API services are seen as the best option for creating resource-oriented services.  \n● It also aids in the development of SOAP-based and RESTful services.  \n5. Which are the primary return types that the Web API supports?  \nThere is no particular data type for it. Any kind of data can be returned, based on what the business needs. Numerous [HTTP methods](HTTP methods), such as GET, POST, PUT, and others, can return data in various formats based on the use case.  \n6. What is Web API 2.0?  \nIt is essentially an improved and changed Web API. This version supports the add-on features listed below:  \n● New Routing Property  \n● ASP. NET Web API security with OAuth 2.0  \n● Assistance with Cross-Origin requests through CORS  \n● Return type for I[HttpActionResult](HttpActionResult)  \n● OData Service Support for $expand, $select  \nWeb API 2.0 is regarded as the best option and a suitable development model that makes it easier to develop because of all its new capabilities.  \nRESTful services provide interfaces to a range of clients operating on different hardware.  \nRoute configuration at the Web API method or controller level is also supported.  \n7. What are JSON and XML?  \nExtensible Marku","cbCaileQc90EWiwF","https://ap.wps.com/l/cbCaileQc90EWiwF","pdf",381786,11,"English","# Introduction\n# List of API Interview Questions for Freshers\n# API Technical Interview Questions and Answers for Freshers\n## What’s an API?\n## What advantages can RESTful web services offer?\n## What is Web API?\n## What are the uses of web APIs?\n## Which are the primary return types that the Web API supports?\n## What is Web API 2.0?\n## What are JSON and XML?\n## Who can use Web API?\n## In terms of an API, what is CRUD?","[{\"question\":\"What does the document focus on for API interview preparation?\",\"answer\":\"It covers practical API fundamentals required in developer interviews, including REST APIs, HTTP methods, request/response concepts, authentication, and error handling.\"},{\"question\":\"How does Web API relate to HTTP?\",\"answer\":\"Web API is an API accessible through Internet protocols using HTTP, enabling server code to read and push data to a server.\"},{\"question\":\"What is the difference between APIs and web services described in the document?\",\"answer\":\"The document states that web services are delivered via SOAP, REST, and XML-RPC over the internet and require a network, while APIs support multiple communication channels and do not require a network to function.\"}]","Top-25-API-Interview-Questions-and-Answers | PDF",1790359812,28]