Solaris 8 is later than Solaris 7. It is your own preference to choose the version.
Call Sun to buy a voucher. You just need the voucher number to register for an exam. They will mail you voucher later. No discount on voucher as far as what I know. Good luck in the exam!
我学了sun solaris administrator 8 的课程,准备考试,是310-011和310-012这两个考试代码吧?我听说还有人在考version 7, 是不是因为7容易,或还有别的差别.考试费能打折扣吗?我在加拿大,但认识人不多,请大家帮个忙!多谢了...