Question 1. A _____ is a software or hardware device used to observe traffic as it passes through a network on shared broadcast media.

• logic bomb
• network sniffer
• backdoor
• trapdoor

Question 2. In a _____ attack, the attacker sends a spoofed packet to the broadcast address for a network, which distributes the packet to all the systems on that network.

• smurf
• denial-of-service
• viral
• worm

Question 3. The art of "secret writing" is called _____.

• spoofing
• smurfing
• cryptography
• cryptanalysis

Question 4. Securing e-mail is something that must be done by _____.

• networking administrators
• security administrators
• outlook express
• users

Question 5. A worm is a type of virus that _____.

• is scripted to send itself to other systems
• is designed to crawl in under a firewall
• buries itself between the kernel and the Application Layer of the operating system
• is passed through e-mails with a subject heading that has the word "worm" in it