Chapter 14: Network Threats and Mitigation

1. D. A denial of service (DoS) attack prevents users from accessing the system. All of the options are possible denial of service attacks.

2. C. Worms, phishing, and rogue access points are all threats that may adversely affect a network.

3. A. Options B, C, and D are all DoS attacks, so the only real option is a file virus. A file virus attacks executable application and system program files.

4. A. In war driving, the attacker simply drives around with a high-powered antenna connected to a wireless laptop scanning for networks.

5. D. These are all examples of boot-sector viruses that get into the master boot record. A boot-sector virus will overwrite the boot sector, thereby making it look as if there is no pointer to your operating system. When you power up the computer, you will see a Missing Operating System or Hard Disk Not Found error message.