Page 4 - Handout Computer Network.
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2.12.6 Applications that Require QoS ............................................................................................ 53
2.12.7 QoS in Modern Networks .................................................................................................... 53
2.12.8 Advantages of QoS .............................................................................................................. 53
CHAPTER 3 ................................................................................................................................... 54
3.1Overview .................................................................................................................................... 55
3.2 Copper Media ............................................................................................................................ 55
3.2.1 Twisted-Pair Cable .............................................................................................................. 55
3.2.2 Shielded Twisted-Pair Cable .............................................................................................. 56
3.2.3. Unshielded Twisted-Pair Cable ........................................................................................ 57
3.3 Optical Media ............................................................................................................................ 58
3.3.1 Fiber-Optic Cables .............................................................................................................. 58
3.3.2 Connectors ......................................................................................................................... 63
3.4Wireless Networking .................................................................................................................. 63
3.5 Wireless LAN Organization and Standards .............................................................................. 64
3.6LAN Physical Layer ................................................................................................................... 64
3.7 Ethernet Fundamentals .............................................................................................................. 66
3.7.1 IEEE 802.3/Ethernet and the OSI Model............................................................................. 66
3.7.2 Ethernet Frame Structure ................................................................................................... 69
3.7.3 Ethernet Operation ............................................................................................................ 69
3.7.4 Media Access Control ......................................................................................................... 70
3.7.5 Simplex, Half-Duplex, and Full-Duplex Operation ............................................................... 71
3.7.6 Ethernet Timing .................................................................................................................. 72
3.8 Collision Domains and Broadcast Domains ............................................................................. 74
3.8.1 Broadcast Domains ............................................................................................................. 76
