Hardware Reference
In-Depth Information
Answers to Review Questions
1.
D. RoHS stands for Restriction of Hazardous Substances, an EU directive that took effect
in 2006.
2.
B. RoHS limits the use of lead, mercury, cadmium, hexavalent chromium, polybrominated
biphenyls, and polybrominated diphenyl ether in electronics manufacturing.
3.
B. Batteries contain toxic chemicals such as lead, nickel, and/or cadmium.
4.
A. The inside of a CRT is coated with phosphors that make the pixels light up. Phosphorous
can explode or burn when exposed to water.
5.
C. Toner is a carcinogen. It is a combination of plastic and metal, so it is not caustic,
fl ammable, or explosive.
6.
B. MSDS stands for material safety data sheet. It is a document that dictates the proper
handling and disposal of a chemical.
7.
A. The Data Protection Directive (EU) prevents data from being used for purposes other
than those for which it was collected, and from being shared with another company.
8.
D. Hibernate saves the content of RAM to the hard disk and then shuts off all power to the
computer. A computer can remain in Hibernate mode indefi nitely because no power is being used.
9.
A. A shutdown script such as this one can be used to shut down a PC remotely via its IP address.
10. A. An LCD monitor is more effi cient than a CRT. CPU and RAM are not types of monitors.
11. C. The Fn key is commonly used along with some other key, such as an arrow key, to
change the monitor's brightness.
12. D. The Energy Star logo marks equipment that uses power effi ciently and may have special
power-management features.
13. D. Virtualization software creates a separate operating system environment within the
main OS on a computer.
14. B. Remote desktop enables you to use a computer remotely with the monitor, keyboard,
and mouse you have available locally.
15. D. NAS stands for network attached storage, which is a network-capable storage device.
Using NAS rather than a fi le server saves energy.
16. A. Green building practices include methods of keeping cool air from leaking out of a
server room, as well as other construction methods that increase insulation.
17. B. Cloud computing means performing computer activities by using applications stored
online rather than owning those applications on your own computer.
18. C. VoIP stands for Voice over IP. It refers to a phone system that is implemented over a
data network or Internet connection.
19. D. Telecommuting, in which employees work from home and connect to their offi ce via
telephone or the Internet, can save a company money and energy.
20. A. Duplex printing means printing on both sides of the paper. This can help you save money
on paper.
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