Freecharge Payments Technologies Pvt Ltd interview question

How can we switch between frames in selenium ? how to take Screenshot using selenium Webdriver ? Have you implemented logging in your automation framework ? If yes please explain. Difference between throw and throws ? Can you describe a complex test automation project that you have worked on ? what are the challenges you have faced and how did you overcome those ? how do you initiate request specifications in rest assured ? what is final keyword in Java ? 4XX error and 5XX error DIfference between .equals() == How many test cases were there in you automation suite? How much time will it take to execute those test cases?