Which of the following devices implements CSMA/CA virtually through the RTS/CTS protocols?

In the URL http://www.mwu.edu/course/info.html#majors, the path and filename of the document are ____.

A. http:// B. www.mwu.edu C. /course/info.html D. #majors

A __________ is a file that consists of a series of commands.

a. pipe b. shell script c. filter d. utility