98.Wireless signals can be disrupted by ____. ( )
A. interference from electrical appliances
B. hills, valleys, trees
C. brick walls and concrete floors
D. all of the above
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24.The primary purpose of ____ software—your computer’s operating system, device drivers, and utilities—is to help the computer carry out its basic operating function. ( )
A. database
B. productivity
C. system
D. application
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88.A typically connects personal computers within a very limited geographical area, usually within a single building. ( )
A. BAN
B. WAN
C. NAN
D. LAN
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68.____ is usually generated at Web sites and is designed to report your online activities to marketing companies that use the information to send you advertisements. ( )
A. File Compression
B. Viruses
C. Spam
D. Spyware
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87.{ messaging is a form of quick communication in which a message is typed, sent to one or more people, and received instantly. ( )
A. Internet
B. Instant
C. IP
D. Chat
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78.Routers are handy for ____. ( )
A. exchanging data between computers on a LAN
B. connecting to the Internet
C. neither a. nor b.
D. both a. and b.
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102.A( ) ____ is a company that offers Internet access to individuals and businesses. ( )
A. NSP
B. DSP
C. ISP
D. ASP
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81.____software is designed to help you create, manipulate, and print graphics. ( )
A. Video
B. Camera
C. Graphics
D. Presentation
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12.USB flash drives use volatile storage technology, which provides fast access to data, and uses very little power. ( )
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89.A computer can have a permanently assigned ____ IP address. ( )
A. connected
B. Static
C. default
D. dynamic
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