For ________ assessment of QoE, computational algorithms provide estimates of audio, video, and audiovisual quality as perceived by the user.

Web page templates can use the ____________________ function within a conditional or switch statement to display dynamic content from different include files within the same section of the template.

Fill in the blank(s) with the appropriate word(s).

What OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises??

A. ?OC-3 B. ?OC-12 C. ?OC-48 D. ?OC-96