IT資訊-實驗室[MIS LAB ]

“路由”中文筆記
第 一 章 ： 路 由 選 擇 原 理
1.1路由選擇基礎知識
路由是將物件從一個地方轉達發到另一個地方的一個中繼過程
學習和維持網路拓樸結構知識的機制被認為是路由功能。渡越資料流程經路由器進入介面

Let's look layer2 switch and other what's Different!!

Layer 2 Switching

Devices that forward frames at Layer 2 involve the following functions:

Cisco and Pearson VUE partner to expand access to Cisco certification and safeguard integrity of global exams
Beginning August 1, 2007, Pearson VUE will be the primary test vendor for Cisco® certification exams worldwide. Cisco CCNA® and CCIE® are two examples of Cisco professional certification exams that will be delivered through Pearson VUE. Additionally, Pearson VUE will deliver other Cisco individual technical certifications and specialization exams previously delivered by multiple test delivery partners. Pearson VUE has been delivering Cisco exams since 2000, but shifting to a primary vendor strategy worldwide will enable Cisco to advance test security through the deployment of advanced biometric technologies, facilitate the rapid localization of exams around the world, and allow for increased certification scalability and coverage.

As a result of this change, all individual Cisco technical certification exams for Cisco customers and partners will need to be scheduled through Pearson VUE. July 31, 2007, is the last date to take a Cisco exam through Prometric. Please visit our Website for a detaile

由上圖表可以得知~

CCNA底層被切割成兩層,最下層CCNET,上層~...囧

ssow 的考試準備心得

我個人準備CCNA的工具如下
Sybex CCNA study guide
Router 模擬器和一些網路上下載的study guide

ADSL/CABLE寬頻分享器介紹


主要是介紹ADSL/CABLE寬頻分享器的基本功能與接線方式，以提供給您參考並做簡易的故障排除，內容包括：

• Ad-Hoc
對稱式無線網路，在無線區域網路架構下提供著獨立的點對點連線方式，不需與有線網路連結即可透過無線網卡連接其他電腦設備。

• ADSL
ADSL（Asymmetric DSL，非對稱DSL）和電話共用同一條線，但它使用的頻帶比話音頻帶高。不過必須在用戶端安裝POTS分路器來隔離話音和ADSL。ADSL有一個版本叫G.Lite、Universal ADSL、ADSL Lite或無分路器ADSL，是面向普通消費者的。它節省了分路器和相應的安裝費用，但是線路上的所有電話必須接入低通濾波器，以把它們同較高的ADSL頻率隔離。ADSL可採用兩種調製方案︰離散多音調（DMT）或無載波振幅相位（CAP）。