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Unformatted text preview: Chapter 9 Study Guide T - a communications channel is the media on which data, instructions, or information travel False - With video messaging, users can send short video clips, usually about 15 minutes, in addition to all picture messaging services (it can only hold 30 seconds of video) T - A network is a collection of computers and devices connected together via communications devices and transmission media False - A local area network (LAN) is a network that covers a large geographic area using a communications channel that combines many types of media such as telephone lines, cables and radio waves (a LAN is a small area using cables) T - A Web server is a computer that delivers requested web pages to your computer T - An intranet is an internal network that uses Internet technologies False - The 40-Gigabit Ethernet standard is the fastest of the Ethernet standards (fastest is 100gb) T - Bluetooth does not require line-of-sight transmission F - At distances of 10 meters (about 33 feet) the data transfer rate for UWB devices is 480 Mbps...
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This document was uploaded on 10/29/2011 for the course CIS 101 at Harper.
- Fall '10