Name a tool commonly used for integration testing.

Postman is a popular tool extensively used for integration testing, particularly for APIs. Its user-friendly interface makes it easy to create and send HTTP requests to API endpoints, allowing developers and testers to validate interactions between different services within an application. By providing functionalities that enable users to inspect response formats, check status codes, and test various scenarios, Postman simplifies the process of ensuring that all integrated components of a system communicate as intended.

In the context of integration testing, where the focus is on verifying that multiple software components work together correctly, Postman stands out as an effective means of conducting end-to-end testing of API interactions. It supports various types of requests (GET, POST, PUT, DELETE, etc.), authentication mechanisms, and can even automate tests and collections to streamline the testing process.

Other tools mentioned, such as JMeter and Selenium, serve specific purposes in performance testing and web application testing, respectively, but they do not specifically cater to API integration testing as effectively as Postman. Apache Kafka, on the other hand, is primarily a distributed streaming platform and is not a testing tool, making it unsuitable for integration testing scenarios.