2009年10月23日

CCNA 3 Chapter 5

摘要： This item references content from the following areas:CCNA Exploration5.1.2 Issues with Redundancy Assessment Item:Refer to the exhibit. All switches in the network have empty MAC tables. STP has been disabled on the switches inthe network. How will a broadcast frame that is sent by host PC1 be hand 阅读全文

posted @ 2009-10-23 23:26 严武 阅读(355) 评论(0) 推荐(0) 编辑

CCNA 3 Chapter 3

摘要： This item references content from the following areas:CCNA Exploration3.1.1 Introducing VLANs Assessment Item:Which two statements describe the benefits of VLANs? (Choose two.)VLANs improve network performance by regulating flow control and window size. VLANs enable switches to route packets to remo 阅读全文

posted @ 2009-10-23 23:25 严武 阅读(333) 评论(0) 推荐(0) 编辑

CCNA 3 Chapter 4

摘要： This item references content from the following areas:CCNA Exploration4.2.2 VTP Domains Assessment Item:Which statement is true when VTP is configured on a switched network that incorporates VLANs?VTP is only compatible with the 802.1Q standard. VTP adds to the complexity of managing a switched netw 阅读全文

posted @ 2009-10-23 23:25 严武 阅读(428) 评论(0) 推荐(0) 编辑

CCNA 3 Chapter 2

摘要： item references content from the following areas: CCNA Exploration2.1.1 Key Elements of Ethernet/802.3 Networks Assessment Item:When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoffperiod has expired?The hosts return to a listen-before-trans 阅读全文

posted @ 2009-10-23 23:23 严武 阅读(418) 评论(0) 推荐(0) 编辑

CCNA 3 Chapter 1

摘要： This item references content from the following areas:CCNA Exploration1.1.1 The Hierarchical Network Model Assessment Item:Which layer of the hierarchical network design model is refered to as the high-speed backbone of the internetwork,where high availability and redundancy are critical?access laye 阅读全文

posted @ 2009-10-23 23:20 严武 阅读(273) 评论(0) 推荐(0) 编辑

CCNA 3 练习题和答案 Chapter 1

摘要： 阅读全文

posted @ 2009-10-23 22:03 严武 阅读(248) 评论(1) 推荐(0) 编辑

2009年9月24日

如何将你在FLASH 8.0里制作完成的动态图片保存成GIF格式的文件，我来教你！！！

摘要： flash8.0做好的动画，然后-->按"打开"→"导出"→"影片"只要把类型改成GIF格式就行了是不是很容易~~~~ 阅读全文

posted @ 2009-09-24 13:38 严武 阅读(469) 评论(0) 推荐(0) 编辑

2009年9月22日

css控制放大图片

摘要： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf- 阅读全文

posted @ 2009-09-22 23:30 严武 阅读(206) 评论(0) 推荐(0) 编辑

跟随鼠标的时钟

摘要： <SCRIPT LANGUAGE="JavaScript1.2">colors = new Array('330099','00ff00','ff00ff');sCol = 'ff00ff';mCol = '00ff00';hCol = 'red';H = '***';H = H.split('');H = H.reverse();M = '****';M = M.split('');M = M.reve 阅读全文

posted @ 2009-09-22 23:28 严武 阅读(227) 评论(0) 推荐(0) 编辑

图片播放器特效

摘要： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb23 阅读全文

posted @ 2009-09-22 22:41 严武 阅读(155) 评论(0) 推荐(0) 编辑

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