Describe the role of the headend in the star topology of a Cable TV WAN.

What will be an ideal response?


The focal point in the star is the headend, which is the central receiving point for signals from various sources, including satellite, other major cable sources, and local television sources. The headend is a grouping of antennas, cable connections, microwave towers, and satellite dishes, and it distills all incoming signal sources and transfers them to remote distribution centers through trunk lines.

Computer Science & Information Technology

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If you want to modify the style of a particular HTML element, it is necessary to assign a(n) ____ to the element.

A. name B. id C. frameset D. placeholder

Computer Science & Information Technology

What do preconditions describe? What do postconditions describe? Do all methods have pre- and postconditions? How do pre- and postconditions relate to code for error handling?

What will be an ideal response?

Computer Science & Information Technology

DVD stands for:

a. Dynamically-Variable Disc b. Distributed Video Disc c. Data-Vision™ Disc d. Double-Volume Disc e. Digital Versatile Disc

Computer Science & Information Technology

Links can include ____.

A. sound B. graphics C. video D. all of the above

Computer Science & Information Technology