- 1. 3
2. 2551, 15) 3. (2551, 6) 4. 2 5. 1.(Data)2. (Sender Source)3.Receiver) Destination)4. (Media) 6. NIC (NetworkInterface Card)(Psysical Media) (Protocol)NOS (NetworkOperating System) 7. 8. 1. Unicast One-to-One Unicast Network Load) 9. 2. Broadcast One-to-All 10. 2. Multicast One-to-NN 11. 1.2.3. 12. 1. Simplex) 13. 2. Half-Duplex) 14. 3. Full-Duplex) 15. 1.2.3. 16. LAN, MAN , WAN) 17. CentralcomputerConcentratorTerminal (CentralizedNetwork) 18. Backbone SwitchBackboneNetworkcomputerCentralConcentratorTerminalDistributedNetwork) 19. Client(Peer to Peer) Server Network)(Workgroup) 20. 1. (Local Area Network: LAN)2. Wide Area Network: WAN) 21. 1. (LAN)3 1.1 Ethernet Xerox IEEE 802.3 Ethernet (10 Mbps), Fast Ethernet (100 Mbps), Gigabit Ether (1000 Mbps) Ethernet CSMA/CD Carrier Sense Multiple Access/Collision Detection) 22. 1. (LAN) 3 1.2 Token-Ring IBM Access Method Token Passing Coaxial, UTP, STP Fiber optic) (Fault- tolerant) 4-16 MbpsIEEE 802.5 23. 1. (LAN)3 1.3 FDDI Fiber Distributed Data Interface) Physical BackboneAccess Method Token-passingTopology (Dual Ring)Fault tolerance)100 Mbps 24. 2. WAN) 2.1 X.253 CCITT1970 (Packet Switching) x.25 Connection-oriented) Switching Virtual Circuit (SVC)Permanent Virtual Circuit (PVC) 25. 2. WAN) 2.2 Frame Relay 3 X.25 Packet Switching 26. 2. WAN) 2.3 ATM (Asynchronous Transfer Mode) 3ATM (Cell) 27. WirelessLAN: WLAN)Radio Frequency: RF)infrared) LAN) 28. WirelessLAN: WLAN) 1971ALOHNETBi-directional- 74 Oahu 29. 1. (WPAN)2.(WLAN)3.(WMAN)4. (WWAN) 30. 1. (WPAN)IR (Infra-Red) Bluetooth 310 31. 2. (WLAN) 0 100 32. 3. (WMAN) 33. 4. (WWAN) 34. 1. IEEE802.112. IEEE802.11a3. IEEE802.11b4. IEEE802.11g5. IEEE802.11n 35. 1.IEEE802.11 2540 12MbpsInfrared) 2.4, 5 GHzWEP 36. 2. IEEE802.11a2542 54 Mbps 5 GHz OFDM(OrthogonalFrequency Division Multiplexing)5 GHz2 GHzIEEE802.11a 37. 3.IEEE802.11b IEEE802.11a254211MbpsCCK(Complimentary Code Keying) DSSS(Direct Sequence Spread Spectrum)2.4 GHz ISM(Industrial Scientific and Medical) ,,IEEE802.11a 38. 3. IEEE802.11b IEEE802.11 IEEE802.11a IEEE802.11b Wi-Fi WEGA(Wireless Ethernet Compatibility Alliance)IEEE802.11b 39. 4.IEEE802.11g2546 OFDM 2.4 GHz 54 Mbps IEEE802.11b Backward-Compatible)IEEE802.11gIEEE802.11b 40. 5.IEEE802.11n 2548IEEE802.11g IEEE802.11n100-540 Mbps 41. 1. (Competency)2.Reliability3. (Security) 42. 1. 1.1 (Competency)1.21.31.4 43. 2. 1. Reliability2.3. 44. 3. (Security) 45. 1. 1.1 1.2 1.3 1.4 46. 2. Electronic Information services)24 47. 3. 3.1 3.2 3.3 48. 4.5. 49. 1.SDU Hosting)dusit.ac.th 50. 2.IDM:Identity Manager) SDU IDMPassword 51. 3. SDU Kiosk (Multi-function self-service kiosk) 52. 4. (SDU Live)Live@eduWindows Live MessengerSDU Live http://www.sdulive.net 53. 5.(SDU Mail) Microsoft Exchange Server 54. 6. (SDU WIFI) WirelessLog In 55. 6. 56. 7. VPN VPNSDU VPN SDUNET@Home SSL VPNInternetIP Address UsernamePasswordE-mailVPN (Virtual Private network)http://webvpn.dusit.ac.th 57. 7. VPN 58. Q/A
