Im in the middle of cisco now and have completed CCNA 3. I have just been made aware that Cisco have changed there exam and course. I have just purchased the new cisco book for CCNA 4 which contains CCNA 3 in it as well. looking at the chapters for CCNA 3, they are different to what l learned in CCNA 3 (they have added new subjects) I feel i will be disadvantaged by this when i sit the exam. Does anyone know if i will be aloud to sit the old exam?