የትምህርት ቤት በኋላ የተሰጠ ትምህርት እንደ ተመለከተ የሚደረገው ጥናት

yes.

yes

experience is certainly necessary; during the course, i would think it would be possible to practically go to companies for about 2 months, and in the final course, it could be more, around 6 months.

yes, at least two months a year.