Pretty confused here, do we have to start the supporting course before the chapter 3 ?
Hi Ravindra – it isn’t mission critical. Personally I continued on with Chapter 3 and completed the course. Then I went back and used the supporting courses as a review aid and or to help close the loop on any gaps. There is no "right" answer here so I’d say whatever you have time for and are comfortable with doing to prepare yourself for the exam.