Learn how to implement data-driven testing and parameterization in REST Assured API testing. Explore techniques for running tests multiple times with different data sets, providing test data from the same and different classes, and utilizing TestNG parameters. Dive into the TestNG DataProvider annotation for writing data-driven tests, and understand how to use it to run the same test with various data inputs. Gain practical knowledge on implementing these concepts to enhance your API testing skills and create more robust and flexible test suites.