API Testing Interview Questions and Answers
Ques 26. What is the role of the 'Pre-flight request' in the context of CORS?
A pre-flight request is an HTTP OPTIONS request sent by the browser before the actual request. It checks if the server allows the actual request to be made from the specific origin.
Ques 27. How can you ensure data integrity in API testing?
Data integrity in API testing can be ensured by validating the correctness and consistency of data returned by the API. This includes checking data types, formats, and values.
Ques 28. What is the purpose of the 'HEAD' HTTP method?
The 'HEAD' method is similar to GET but returns only the headers and no message body. It is often used to check the status and headers of a resource without fetching the entire content.
Ques 29. Explain the concept of 'Swagger Codegen' in API development.
Swagger Codegen is a tool that automatically generates server stubs and client libraries from an OpenAPI Specification. It helps in accelerating API development.
Ques 30. What is the purpose of the 'Retry-After' header in an HTTP response?
The 'Retry-After' header indicates how long the client should wait before making another request. It is often used in the context of rate limiting or when a server is temporarily unavailable.
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