Final answer:
The feature that protects applications by indemnifying and restricting access to available files and data is called file access control.
Step-by-step explanation:
The feature that protects applications by indemnifying and restricting access to available files and data is called file access control.
File access control is a security mechanism that determines who can access files and data within an application. It typically involves setting permissions and access rights for different user roles or groups. By using file access control, applications can ensure that only authorized users can access and modify specific files and data.
For example, an application may have different user roles such as administrators, managers, and regular users. Through file access control, the administrators and managers may have full access to all files and data, while regular users have restricted access to specific files or data based on their role or permissions.