1. T 2. F 3. F 4. F 5. T 6. T 7. T 8. F 9. T 10. T 11. F 12. F
1. A 2. C 3. B 4. A 5. D 6. B 7. D 8. C
1. E 2. I 3. A 4. G 5. J 6. H 7. D 8. B 9. F 10. C
4. IP addresses are a series of numbers signifying the location of a website. Domain names are the text equivalent to the website’s numerical or IP address.
15. Using a public computer for accessing any personal accounts is not advised; it can lead to identity theft. Some people are just waiting for the opportunity to collect another’s bank account information or any personal information to use and find a way to benefit from it. The information you enter is travelling through an open network, easily gathered by someone else. The public computers can have tracking software, or record your keystrokes too. There are eyes everywhere, whether it is physically by you or virtually.
20. JPEG is a graphics file that is compressed, so it takes up less space. The more compressed it is, the quality of the image is reduced as well. PNG is a compressed graphics file, but the quality of the image is not compromised at all once opened.
FLIR and Seek are two companies producing thermal imaging attachments for cell phones. FLIR, who entered the arena first, sells one for about $249.99, compatible with IOS or Android phones. Seek has two IPhone Otterbox models for sale, $249.99 and $299.99. Caterpillar created an Android cell phone with the thermal imaging built in, not as an accessory, for $600.00. As to which mobile phone takes better thermal images, it seems to depend on the thermal camera itself. FLIR has made attachments for both platforms, while Seek has focused on the IPhone. Three researchers from the University of California at San Diego, Keaton Mowery, Sarah Meiklejohn and Stefan Savage, brought this gadgets use to a new light at the USENIX Security Symposium. Their research exposed the potential for ATM PIN numbers to be stolen through thermal imaging. It was found the metal keys on an ATM kept the heat images for the least amount of time, while rubber and plastic keypads can keep thermal print for about one minute. Some recommendations to keep your PIN and accounts safe are to utilize the bank lobbies, or if necessary to use an ATM, rest your fingers on the keypad while entering your PIN to spread heat to the other keys. You can also use an object like a pen or stylus to press the keys and avoid leaving any thermal images behind.