Est 320 test material - Study guides, Class notes & Summaries

EST 320 Test Material – Quiz Answers Quiz 1  Digital signaling: is used by TDM.  The Open Systems Interconnection (OSI) reference model: is a de jure standard.  The voice band developed by the telephone company is the range of frequencies from: 300 Hz to 3,400 Hz.  Ethernet: was released as a de facto standard in 1980.  In the earliest stages of telephone use, to call one telephone from another required the two telephones to be directly connected by a pair of wires carry...

Quiz 1  Digital signaling: is used by TDM.  The Open Systems Interconnection (OSI) reference model: is a de jure standard.  The voice band developed by the telephone company is the range of frequencies from: 300 Hz to 3,400 Hz.  Ethernet: was released as a de facto standard in 1980.  In the earliest stages of telephone use, to call one telephone from another required the two telephones to be directly connected by a pair of wires carrying electricity. True  Glass fibers ...

1. Anthropogenic derived from human activities 2. Erosion The process by which wind, water, ice, or gravity transports soil and sediment from one location to another 3. Runoff Part of the water cycle where an excess of water runs down and does not sink into the soil and eventually makes it to the rivers, lakes, and oceans. 4. Denitrification process in which fixed nitrogen compounds are con- verted back into nitrogen gas and returned to the atmosphere 5. Nitrification ammonia (NH3) is conv...