a. Describe the three scanner actions in the enrolment process. b. What are key features? c. Why are they necessary? d. What does the server do with the key features created by the enrolment scan? e....

a. Describe the three scanner actions in the enrolment process. b. What are key features? c. Why are they necessary? d. What does the server do with the key features created by the enrolment scan? e. What is a template? f. What is user access data? g. What are match indices, and how are they related to decision criteria?