Affiliate Marketing Secrets

In what month of the year do they star preparing for the Board exams?
How many hours do they usually study?
How many times do they practice the previous years’ question papers?
From which month, do they start practicing the previous years’ question papers? How many hours a day do they practice those?
Answer if you are/were from a CISCE-affiliated(ICSE) school.

I want to have marketing plan of big companies (like wal-mart,ford,GM,Googleand etc.) If these documents are secret, their plans in previous years is interesting for me too, for example Wal-Mart’s marketing plan in 2002 ! where can i find them ?