Exercises are interactive tasks which help you to learn faster and better. The best thing about interactive tasks is that you get the results right after you are ready with the task. The system compares your answers with the answers which were set by the course author as correct ones and shows you the result in %.
There 6 different types of interactive exercises:
!NB: Please use the latest versions of Chrome, Mozilla Firefox or Opera to get the right worklflow of the interactive tasks.
There are no limitations about how many times you try to do the exercise. The main thing is – do it till perfection!