56K, bwoo harr harr harr, why not get your OCP in Oracle 6 as well, get out of the stone age man!

To answer your question, I purchased the 8i upgrade exam and the .EXE is 758KB, you should have it downloaded by the time 10i hits the streets. Honestly, I am not sure how long it would take to download 758KB on a modem, probably an hour or so.

MH