If i write BSCI& BCMSN before July 31st And ISCW & ONT after July31st,then how it will effect my certification...?
Sorry, I stand corrected.....the other day when I looked that was the case but I just double checked and they have changed it. Here is s link to the information you are looking for.
If you have BSCI and BCMSN then you would only need the TShoot exam. But remember that those exams are only good for three years from thier pass date.
You will not be able to take BSCI, BCMSN, ISCW or ONT after 31st July. If you manage to take BSCI and BCMSN before 31st July but don't manage ISCW and ONT your only option will be to take the new troubleshooting exam.
After 31st July you need:
BSCI or new route exam
BCMSN or new switch exam