__________ channels are unauthorized or unintended methods of communications hidden inside a computer system, including storage and timing channels.

A table contains a field named category color number, which is given to each record based on one of seven categories (1=red, 2=orange, etc.). The category color number would be a good choice for the primary key of the table

Indicate whether the statement is true or false

Security principals can be either users or groups.

Answer the following statement true (T) or false (F)