Which wireless modulation technique combines digital and analog signaling to encode data into radio signals?

A. Spread-spectrum transmission
B. QAM
C. QPSK
D. BPSK


Answer: B

Computer Science & Information Technology

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Which of these “properties” of testing using stubs and drivers are correct?

a) Using drivers and stubs is a lot of work for not much gain. b) Using drivers and stubs avoids trying to debug a large program all at once. c) Testing the pieces is difficult to do in any significant way. You need the entire program to run a meaningful test. d) Drivers run the pieces individually. They are temporary. They can be minimal, without i/o, having only data generating code, and not doing much (except possibly validating) with the information they return. e) Stubs are short programs that are fairly easy to write. They return only minimum data necessary for the caller to be debugged.

Computer Science & Information Technology

____ is unrequested e-mail that is sent to hundreds, thousands, or even millions of users.

A. Freeware B. Adware C. Spam D. Malware

Computer Science & Information Technology

One of the most important uses of meta elements is to help search engines to find the Web site.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

A predesigned set of fonts, colors, and fill effects that look good together is a ________

Fill in the blank(s) with correct word

Computer Science & Information Technology