1. Summarize the policy to provide file sharing among users. 2. When we wish to specify file-access rights, which elements serve as subjects and objects in the access matrix? 3. Explain the difference...

1. Summarize the policy to provide file sharing among users.

2. When we wish to specify file-access rights, which elements serve as subjects and objects in the access matrix?

3. Explain the difference between a default permit policy and one that enforces Deny by Default.