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In case if you miss any of your classes, you can cover that topic in the backup classes. No extra fee will be charged from you for the backup classes. The only thing you have to do is to inform the counselor first, in case you need the backup classes.
Neither it’s a total theory nor a total practical course. In fact, it is the perfect blend of the theory and the practical classroom exercise, assignments, etc. It is not just a “Pay to get certificate” course, rather, it’s a “Hands on training program”.