第五章
Post on 04-Jan-2016
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5-15-1.1(Local Area NetworkLAN)(Router)
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---(Wide Area NetworkWAN)
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5-1.2(Protocol) ()
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TCP/IP
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http://www.ntnu.edu.twhttp()FTPTELENTSMTPTCP/IPTCP()TCP/IPIPIPIP(Ethernet)
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OSITCP/IP(International Organization for StandardizationISO)(Open Systems InterconnectionOSI)OSI(Layer)OSI 7(5-1.4)
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OSIOSI 7OSI 7n
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DHCP (Dynamic Host Configuration PortocolDHCP) IPDHCPIP(IP)
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() www .savs.ilc.edu.tw
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5-1.1
NTNUbbsbbs.ntnu.edu.tw
WWWwww.tcivs.tc.edu.twFTPftp.savs.ilc.edu.twMailmail..tcivs.tc.edu.tw.BBSbbs.ntu.edu.tw
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(Domain NameDN)(Server)IPIP
NTUwww.ntu.edu.tw
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5-1.2
()()TwTaiwanCnChinaHkHongKongJpJapanAuAustraliaSgSingapore(www.nba.com)
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5-1.3
tzuchihttp://www.tzuchi.org.tw/
EduEducation()ComCommerceGovGovernment()NetNetwork(www.hinet.net)OrgOrganization()MilMilitaryIdvIndividual
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(Domain Name ServerDNS)IP IPIPIP Ping
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IP(http://
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5-1.3 tracert www.ttv.com.tw IP
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TTV () www.ttv.com.tw
(Hinet)
()
A
B
C
T
D
1
2
E
F
3
4
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5-1.3 (TaNet)(5-1.10)(Hinet)
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5-1.4 1.56kbps(bit per secondbps) ISP (Modem)()
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5-1.4 2. (Internet Service ProviderISP)(Asymmetric Digital Subscriber LineADSL)(Cable)
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2.ADSLADSLADSL(256k~9Mbps)(9.6k~1Mbps)DSL() ADSLISP(Internet Service Provider)6
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ADSL()()ADSL
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2.CMCM(Cable Modem)ISP()1.5Mbps
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()()
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(Hub)
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(Hub)
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(Ring)
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(Tree)
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3. (Access PointAP)5-1.17
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3. IEEE 802.11 IEEE 802.11b IEEE 802.g802.11(CSMA/CA)IEEE 802.11b11MbpsIEEE802.11g802.11b55Mbps
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5-25-2.1 P201~204(1) / Internetr() (2)YahooYahoo
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5-25-4.2 P205~206()
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5-3 5-3.1(E-mail)()E-mailSMTP(Simple Mail Transfer Protocol)POP3(Post Office Protocol 3)
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5-3.1(E-mail)Jeff E-mail() mary@hinet.net
SMTPSMTPHinet.netPOP3Mary E-mail()POP3Jeff
At()
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5-3.2(FTP) FTP://(IP) FTPFTPQFTPFTP
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5-3.3(BBS) (Talk)(Chatroom)(Telnet)WebBBS -- TelnetBBS(p208~210)
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5-3.4(WWW)(World Wide WebWWW)(Browser)(Hyperlink)() (Internet ExploreIE) (HyperText Markup LanguageHTML) /
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5-45-4.1 P211~214(1)() ()category 5e (6e)RJ45
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5-4.1 P211~214(2)()(568A)(568B) *
12345678
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5-4.2 (1)RJ45(2)(3)
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5-4.3 ADSLADSL
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5-4.3 ADSL(IP)ADSL(RouterIP)IP(DHCP+ NAT)
192.168.0.101192.168.0.102IPWANADSL LineLAN
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5-4.4 ADSLALERT()LANADSL()LinKALERTDATA RXDATA TX
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5-4.4 () WAN
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5-4.5(1) P219~222(2) P223~227(3) P227~230
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