The Backing bean is similar to the Managed bean in JSF. The difference in the two merely pertains to the usage of the two. Backing Bean Managed Bean
1. A backing bean is referred to by its form The managed bean is a backing bean which has been registered with the JSF. It gets automatically created and optimized by the JSF.
2. The Backing Beans should be defined in the request scope only The Managed beans are created by the JSF, and it can be stored within the session, request or application scope.
BY Best Interview Question ON 24 Mar 2019