Usability testing:
a. settles all internal debates
b. should be used only at the end of the product design process
c. often reveals problems that are more significant than the issues the test was
supposed to resolve
c. often reveals problems that are more significant than the issues the test was
supposed to resolve
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Which of the following best characterizes CSMA/CA?
a. It replaces CSMA/CD. b. It provides carrier sense with collision avoidance. c. It provides carrier sense with congestion avoidance. d. It provides congestion sensing with collision avoidance.
HTTP
A. is the document format used to produce Web pages. B. controls Web browsers that access the Web. C. is used to connect to Usenet groups on the Internet D. is used to transfer text files, programs, spreadsheets, and databases across the Internet. E. is a low-level encryption scheme used to secure transmissions in higher-level () format.