Here is some more detail about the Microsoft Certification Exam packages offer
There is only one voucher for each exam pack. Once the voucher code is obtained, the exam taker will be able to schedule and purchase the exam online via Prometric
. Only one exam can be registered at a time.
In the case that a retake is needed, exam takers will need to request a retake voucher at Prometric
will provide a retake voucher via email.
If the exam taker has a single exam voucher with Second Shot, he/she will use the same voucher code to get the retake.