The ________ of a picture is the area to be kept with the Remove Background tool

Describe each of the following four kinds of access control mechanisms in terms of (a) ease of determining authorized access during execution, (b) ease of adding access for a new subject, (c) ease of deleting access by a subject, and (d) ease of creating a new object to which all subjects by default have access.

1. Per-subject access control list (that is, one list for each subject tells all the objects to which that subject has access) 2. Per-object access control list (that is, one list for each object tells all the subjects who have access to that object) 3. Access control matrix 4. Capability

An overloaded method is one that ________.

a. has a different name than another method, but the same parameters b. has the same name as another method, but different parameters (by number, types or order of the types) c. has the same name and parameters as a method defined in another class d. has the same name and parameters, but a different return type as another method