To add an email name and address to a mailing list, a user unsubscribes from it.

A(n) ____________________ interface is software that enables you to configure and monitor one or more firewalls that are located at different network locations.

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

Methods used to maintain an audit trail in a computerized environment include all of the following except

A. transaction logs B. transaction listings C. data encryption D. log of automatic transactions