A(n) _________________________ is a backup copy of the configuration of a PC which a user can revert to if an operational problem arises.

A validation rule is a property that can be assigned to fields to ensure the correct data is being entered into the field

Indicate whether the statement is true or false

In ____________________ (aggregation), one or more members of a class are objects of another class type.

Fill in the blank(s) with the appropriate word(s).