Which of the following are all common forms of viruses?
A. packet tampering, worms, cakes, and trojan viruses
B. polymorphic, sniffer, splogs, and denial-of-service viruses
C. backdoor program, worm, Trojan-horse viruses
D. All of these are correct.
What software handles contact information, appointments, task lists, and email?
A. preventive security software
B. personal information management software
C. crash-proof software
D. course management software