查看完整版本: 網路基礎與通訊服務-第一章

chun 2008-5-19 22:02

網路基礎與通訊服務-第一章

http://tw.myblog.yahoo.com/jw!na7P9NGBBQcc54VwtIxozwTKYzE-/archive?l=f&amp;id=7<br>
<p><b style=""><span style="font-size: 16pt;">網路基礎與通訊服務課程</span></b><b style=""><span style="font-size: 16pt;"></span></b></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">l<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><b style=""><span style="">網路存取架構</span></b><b style=""><span style="font-size: 14pt;"></span></b></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">Ø<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">以主機為基礎的架構</span><font face="Times New Roman"><span>(Host Based)</span><span style="font-size: 14pt;"></span></font></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">主機資源共享</span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">系統負載大</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">系統資源集中</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">用戶端硬體需求少</span><font face="Times New Roman"> </font></font></p>

<p><span style="font-size: 14pt;"><font face="Times New Roman">&nbsp;</font></span></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">Ø<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">以共用資源為主的網路架構</span><font face="Times New Roman"><span>(Share Based)</span><span style="font-size: 14pt;"></span></font></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">可於遠端直接執行或下載檔案至用戶端</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">遠端執行程式時,會將伺服器上的檔案直接展開於用戶端</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">遠端執行程式時,用戶端不會有該程式的備份檔</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">Ø<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">主從架構</span><font face="Times New Roman"><span>(Client/Server)</span><span style="font-size: 14pt;"></span></font></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">用戶端:硬體需求較高、負責輸出/輸入、負載量小</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">伺服端:負責運算、負載量高</font></span></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">Ø<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">多層式架構</span><font face="Times New Roman"><span>(N-Tier)</span><span style="font-size: 14pt;"></span></font></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">提供服務的伺服器至少一台以上</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">負載可分散於各伺服器</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">擴充彈性大</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">§<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">架構複雜</span><span style="font-size: 14pt;"></span></font></p>

<p><span style="font-size: 14pt;">第一章:深入瞭解</span><span style="font-size: 14pt;"><font face="Times New Roman">OSI</font></span><span style="font-size: 14pt;">七層與網路設備架構應用</span><span style="font-size: 14pt;"></span></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">Ø<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style="font-size: 14pt;">網路類型</span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">區域網路</span><span><font face="Times New Roman">(LAN)</font></span><span style="">:</span><span><font face="Times New Roman">3</font></span><span style="">公里以內</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">都會網路</span><span><font face="Times New Roman">(MAN)</font></span><span style="">:</span><span><font face="Times New Roman">100</font></span><span style="">公里以內</span><span><font face="Times New Roman"><span style="">&nbsp; </span>Ex.</font></span><span style="">第四台的</span><span><font face="Times New Roman">cable</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">廣域網路</span><span><font face="Times New Roman">(WAN)</font></span><span style="">:</span><span><font face="Times New Roman">Ex.</font></span><span style="">網際網路</span><span><font face="Times New Roman">(Internet)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">Ø</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">網路拓撲</span><span><font face="Times New Roman">(Network Topology)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">匯流排</span><span><font face="Times New Roman">(Bus)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">星狀</span><span><font face="Times New Roman">(Star)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">環型</span><span><font face="Times New Roman">(Ring)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">星狀匯流排</span><span><font face="Times New Roman">(Star-Bus)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">星狀環型</span><span><font face="Times New Roman">(Star-Ring)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">網狀</span><span><font face="Times New Roman">(Mesh)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">Ø</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span><font face="Times New Roman" size="3">OSI 7 Layers</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">應用層</span><span><font face="Times New Roman">(Application)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">使用者操作介面</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">提供服務:</span><span><font face="Times New Roman">email</font></span><span style="">、</span><span><font face="Times New Roman">BBS</font></span><span style="">、</span><span><font face="Times New Roman">EDI</font></span><span style="">、</span><span><font face="Times New Roman">WWW</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">表現層</span><span><font face="Times New Roman">(Presentation)</font></span><span style="">:資料轉換方式</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">格式化</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">協定轉換</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">資料加解密</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">會議層</span><span><font face="Times New Roman">(Session)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">協調</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">建立連結</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">資料交換方式:單工、半雙工、全雙工</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">傳輸層</span><span><font face="Times New Roman">(Transport)</font></span><span style="">:</span><span><font face="Times New Roman">end to end</font></span><span style="">的流量控制</span><span><font face="Times New Roman">,Ex.TCP</font></span><span style="">協定</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">流量控制</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">錯誤控制</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">網路層</span><span><font face="Times New Roman">(Network)</font></span><span style="">:網路與網路間溝通</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">定址</span><span><font face="Times New Roman">(Addressing)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">路由</span><span><font face="Times New Roman">(Routing)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">資料連結層</span><span><font face="Times New Roman">(Data Link)</font></span><span style="">:同網路中的實體定址</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">媒體存取控制</span><span><font face="Times New Roman">(MAC)</font></span><span style="">:定址、框架化、存取方式</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">邏輯連結控制</span><span><font face="Times New Roman">(LLC)</font></span><span style="">:錯誤修正、流量控制</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">實體層</span><span><font face="Times New Roman">(Physical Layer)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">傳輸媒體種類</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">導引性媒體:同軸電纜、雙絞線、光纖</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">無導引性媒體:紅外線、窄頻無線電</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">訊號編碼方式</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">Ø</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">協定資料單元</font></span></p>

<p><font size="3"><span style="">註</span><span><font face="Times New Roman">:</font></span><span style="">在</span><span><font face="Times New Roman">Frame</font></span><span style="">所代表的地址稱之為</span><span><font face="Times New Roman">MAC Address</font></span><span style="">,又稱之為實體位址</span><span><font face="Times New Roman">(Physical Address)</font></span><span style="">,而</span><span><font face="Times New Roman">IP</font></span><span style="">位址由於是屬於第三層的架構,又稱之為邏輯位址</span><span><font face="Times New Roman">(Logical Address)<span style="font-family: Symbol;"><span style=""><font size="3"><img src="http://tw.f14.yahoofs.com/myper/na7P9NGBBQcc54VwtIxozwTKYzE-/blog/ap_20060821070726524.jpg?TTo7YMIBsw4fYn61" height="220" width="330"></font></span></span></font></span></font></p>

<p><font size="3"><span></span></font>&nbsp;</p>

<p align="center"><span style="font-size: 14pt;"></span></p>

<p><span style="font-size: 14pt; font-family: Wingdings;"><span style="">Ø<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style="font-size: 14pt;">網路資料傳輸類型</span><span style="font-size: 14pt;"></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">點對點傳輸</span><span><font face="Times New Roman">(Unicast):Ex. </font></span><span style="">瀏灠網頁</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">廣播傳輸</span><span><font face="Times New Roman">(Broadcast):Ex. ping</font></span><span style="">某</span><span><font face="Times New Roman">ip</font></span><span style="">的網路卡號碼</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">多址傳輸</span><span><font face="Times New Roman">(Multicast):Ex. </font></span><span style="">網路電影院</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">Ø</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">網路連接設備</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">信號再生器</span><span><font face="Times New Roman">(Repeater)</font></span><span style="">:</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">將媒體上的訊號重新產生,非放大</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">屬於實體層的裝置,兩端所使用的媒介存取方式要相同</span><span><font face="Times New Roman">(</font></span><span style="">如</span><span><font face="Times New Roman">:</font></span><span style="">都必須是</span><span><font face="Times New Roman">Ethernet)</font></span></font></p>

<p><span style="color: red; font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="color: red;">無法提升網路使用效能</span><span style="color: red;"></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">集線器</span><span><font face="Times New Roman">(Hub):</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">轉送所有訊框</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">很容易加入或移除電腦</font></span></p>

<p><span style="color: red; font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="color: red;">只要</span><span style="color: red;"><font face="Times New Roman">Hub</font></span><span style="color: red;">出問題網路就無法運作</span><span style="color: red;"></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">橋接器</span><span><font face="Times New Roman">(Bridge):</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">屬於第二層─資料連結層的裝置</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">連接不同的實體媒介,如</span><span><font face="Times New Roman">Cable</font></span><span style="">與光纖電纜</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">連接不同的網路區段,如</span><span><font face="Times New Roman">Ethernet</font></span><span style="">與</span><span><font face="Times New Roman">Token Ring</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">轉送廣播訊框,篩選直接訊框</font></span></p>

<p><span style="color: red; font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="color: red;">連接產生迴圈時,會造成廣播風暴</span><span style="color: red;"></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">交換器</span><span><font face="Times New Roman">(Switch)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">屬於第二層─資料連結層的裝置</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">轉送廣播訊框,篩選直接訊框</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">提供保障頻寬</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">透過訊框讀取技術加速網路速度</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">路由器</span><span><font face="Times New Roman">(Router)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">屬於第三層─網路層裝置</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">依網路位址轉送封包</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">隔離網路廣播,並選擇最佳路徑來傳送資訊</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">應用在連接不同的網段、不同的網路協定與不同的網路架構</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">閘道器</span><span><font face="Times New Roman">(Gateway)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">解譯不同的網路型態,如</span><span><font face="Times New Roman">Ethernet</font></span><span style="">與</span><span><font face="Times New Roman">Token Ring</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">主要在第四層以上運作</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">Ø</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">區域網路架構</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">乙太網路</span><span><font face="Times New Roman">(Ethernet)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">目前最普及的網路架構</span><span><font face="Times New Roman">:</font></span><span style="">價格便宜、容易安裝</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">存取方式:</span><span><font face="Times New Roman">CSMA/CD(</font></span><span style="">載波偵測、多重存取、碰撞檢查</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">記號環網路</span><span><font face="Times New Roman">(Token Ring)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">存取方式:</span><span><font face="Times New Roman">Token passing</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">實體佈線方式:星狀網路</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">光纖分散式資料界面</span><span><font face="Times New Roman">(FDDI)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">存取方式:</span><span><font face="Times New Roman">Token passing</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">使用兩個傳輸方向不同的環狀網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">實體佈線方式:環狀網路</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">無線區域網路</span><span><font face="Times New Roman">(Wireless LAN)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">存取方式</span><span><font face="Times New Roman">:CSMA/CA(</font></span><span style="">載波偵測、多重存取、衝突避免</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">WPAN:</font></span><span style="">個人</span><span><font face="Times New Roman">=10</font></span><span style="">米內</span><span><font face="Times New Roman">(Ex.</font></span><span style="">藍芽</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">WLAN:</font></span><span style="">區域網路</span><span><font face="Times New Roman">=400</font></span><span style="">米,</span><span><font face="Times New Roman">802.11</font></span><span style="">系列</span><span><font face="Times New Roman">(Ex.WiFi)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">WMAN:</font></span><span style="">都會</span><span><font face="Times New Roman">=50km,802.1b(Ex.WiMAX)</font></span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">Ø</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">廣域網路</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">Carrier Provider:</font></span><span style="">提供線路</span><span><font face="Times New Roman">(</font></span><span style="">載波</span><span><font face="Times New Roman">)</font></span><span style="">的廠商</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">ISP:</font></span><span style="">提供</span><span><font face="Times New Roman">Internet</font></span><span style="">服務的廠商</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">ICP:</font></span><span style="">提供</span><span><font face="Times New Roman">Internet</font></span><span style="">內容資訊的廠商,如奇摩</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">ASP:</font></span><span style="">應用服務供應商</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">專有名詞</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">CPE:</font></span><span style="">用戶端設備</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">DTE:</font></span><span style="">資料終端設備</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">DCE: </font></span><span style="">資料通訊設備</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">Demarcation:</font></span><span style="">分界點</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">CO:</font></span><span style="">局端機房</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">Local loop:</font></span><span style="">本地迴路</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">技術</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">電路交換</span><span><font face="Times New Roman">(Circuit Switching):</font></span><span style="">專屬的線路</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">分封交換</span><span><font face="Times New Roman">(Packet Switching):</font></span><span style="">共享的線路</span></font></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">常見的服務:</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">數據專線</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">又稱為租用專線</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">屬固定連線</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">線路專屬,頻寬獨享</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">連線成本固定</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">頻寬愈大、距離愈遠─成本愈高</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對外可連至網際網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對內可連接企業內部網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">公眾電話交換網路</span><span><font face="Times New Roman">(PSTN)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">電路交換網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">最普及的廣域網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">有需要才進行連線</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">連線成本不固定</span><span><font face="Times New Roman">(</font></span><span style="">時間越長,費用越高</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">初期建置成本低廉</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對外可連至網際網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對內可連接企業內部網路</font></span></p>

<p><span><font face="Times New Roman" size="3">&nbsp;</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">ISDN(</font></span><span style="">整合服務數位網路</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">電路交換網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">有需要才進行連線</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">連線速度快</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">設備成本高,連線成本不一定</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對外可連至網際網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對內可連接企業內部網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">可作為備援線路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span><font face="Times New Roman" size="3">X.25</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">分封交換網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">使用虛擬電路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">連線非常可靠</span><span><font face="Times New Roman">(</font></span><span style="">流量控制與錯誤控制</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">頻寬小,連線速度慢</span><span><font face="Times New Roman">(9.6K~64K)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">可連接企業內部網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">Ex.</font></span><span style="">金融、證券與銀行業</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span><font face="Times New Roman" size="3">Frame Relay</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">分封交換網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">使用虛擬電路</span><span><font face="Times New Roman">(PVC)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">可提供高速、彈性的頻寬</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">適合連接多個網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">對內可連接企業內部網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">跟專線比費用低</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">ATM(</font></span><span style="">非同步傳輸模式</span><span><font face="Times New Roman">)</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">分封交換網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">採用固定長度傳輸資料─</span><span><font face="Times New Roman">cell</font></span><span style="">,固定</span><span><font face="Times New Roman">53Bytes</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">頻寬大,連線速度快</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">成本高</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">可連接區域網路或廣域網路</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span style="">非同步,</span><span><font face="Times New Roman">switch Base</font></span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">¨</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">骨幹網路採用</font></span></p>

<p><span style="font-family: Wingdings;"><span style=""><font size="3">§</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span style=""><font size="3">新興的廣域網路技術</font></span></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">ADSL(</font></span><span style="">非對稱數位用戶線路</span><span><font face="Times New Roman">)</font></span><span style="">─電話線</span></font></p>

<p><span style="font-family: Symbol;"><span style=""><font size="3">·</font><span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><font size="3"><span><font face="Times New Roman">CATV Cable(</font></span><span style="">有線電視網路</span><span><font face="Times New Roman">)</font></span><span style="">─同軸電纜</span></font></p>
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查看完整版本: 網路基礎與通訊服務-第一章