Homework - CSIS 625 - Spring 2001 - Oelke

Due Week 4 (2/20/01) by classtime

Name:

Define the following:

Bandwidth:

Network:

Protocol:

Class 5 switch:

Half-Duplex:

Star Network:

Pure Mesh Network:

PCM:

QAM:

Describe the difference between the United States telephone network before the 1984 break up of AT&T and after.

Describe a PBX

Describe the difference between a PBX and Centrex Service

List the 7 OSI layers and describe each briefly:

Which layer of the OSI model provides end to end connectivity of nodes?

Explain the difference between an EthernetHub, an Ethernet Layer-2 switch, and a Router.

What is bit rate? What is baud rate? How are they related?

Create a Constellation diagram for a 16-QAM system. (Not the same as in the notes, or in the book) Include bit definitions for each point.

With a given bandwidth, which digital-to-analog encoding technique gives the highest bit rate and why?