Study Guide exam 2 - Study Guide TC201 Summer 2011 Exam 2...

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Study Guide TC201 Summer 2011 Exam 2 If you see an acronym on this sheet, it’s fair game for the exam. Pretty much everything you see in lecture slides Broadband o Basic ways connecting to the Internet LAN’s Wired or Wireless Dial-up modems Broadband Modems xDSL and Cable o Dial up basics and limitations Rich content on the internet (music, video, pictures) Means faster access and transport needed o Broadband penetration rates o How DSL (Digital Subscriber Loop) works Doesn’t need special wire, uses existing copper phone lines Requires DSL modem to be at home and telephone company Always-on connection Analog and voice calls sent over telephone wires Small bandwidth Talk and use internet at the same time Phone line divided into 3 Channels Sending data, Receiving data, Telephone Your DSL modem must be within a certain distance of phone company’s modem Depends on certain DSL service and speed o How cable modems work Broadband cable comes into home and split to the box for TV and modem for internet Modem attaches to an Ethernet network card inside computer Attached to the internet and has network address The coaxial cable carries TV and computer signal simultaneously On a 6MHz channel Divided into nodes (about 500 homes) The more people accessing on a single node, access is slower Nodes connected via high speed fiber optic cable to a head end facility Single head end handles all nodes for about 4-10 towns Responsible for delivering TV and internet access to customers
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Head ends receive TV from satellites and Internet access via high speed links to the Internet o Differences between cable modems and DSL Advanced mobile o The process of 2G evolution into 3G Built for Voice and Data (range or services) Integration with Internet Data rates greater than 144kbps(up to 14 mbps) Support global roaming Backwards compatible Standards that require all-new networks and frequency allocations o GPRS vs. Edge (2.5G) GPRS (General Packet Radio Service) Packet-based (always on) Requires new handsets and upgrades to infrastructure
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This note was uploaded on 10/17/2011 for the course TC 201 taught by Professor Staff during the Summer '08 term at Michigan State University.

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Study Guide exam 2 - Study Guide TC201 Summer 2011 Exam 2...

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