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98 Chapter 2 • General Security Concepts: Attacks

A. A logic bomb

B. A worm
C. A keylogger
D. Social Engineering

8. Packet sniffing will help with which of the following? (Select all that apply.)
A. Capturing e-mail to gain classified information
B. Launching a DDoS attack with zombie machines

C. Grabbing passwords sent in the clear
D. Developing a firewall deployment strategy

9. Which of the following are sniffers? (Select all that apply.)
A. Wireshark

B. Tcpdump
C. Nessus

D. Snoop

10. Which password attack will take the longest to crack a password?
A. Password guessing
B. Brute force attack

C. Dictionary attack
D. All attacks are equally fast

11. What are some of the advantages of off-line password attacks? (Select all that
apply.)

A. They do not generate noise on the target network or host.
B. They are not locked out after a set amount of tries.
C. They can be used to reset the user’s password without the need for
cracking.
D. They can be initiated by zombies.

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