Answer:
Mutual authentication for multiple services is also known as multi factor authentication.
Step-by-step explanation:
Another name for mutual authentication is also Two factor authentication which is categorized ususlly as the subset of multi factor authentication.
Multi-factor authentication as obvious from the name itself is a way of checking or authenticating he person/user by two or three factors that are known only by him. Multi-factor authentication may includes authentication by:
- knowledge of user
- inherence of user
- possession of user
I hope it will help you!