CCNA题库详解系列5(艾迪飞CCIE实验室吴老师讲解)

冷血

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">How does replacing a hub with a switch affect CSMA/CD behavior in an Ethernet network?<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman"><FONT color=#000000>A. It effectively eliminates collisions.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman"><FONT color=#000000>B. In increases the size of the collision domain by allowing more devices to be connected at once.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman"><FONT color=#000000>C. It decreases the amount of time that a jam signal must be sent to reach all network devices.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman"><FONT color=#000000>D. It reduces the total amount of bandwidth available to each device.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman"><FONT color=#000000>E. It eliminates Layer 3 broadcast traffic.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face="Times New Roman" color=#000000>Answer: A</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解释一下：

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INTERNETCAI

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liuxinhuan

谢谢你 吴老师

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cx300

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darcyz

顶下，谢谢楼主

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yuhchilin017

CCNA640-801题库试题分析  超棒

dkevin411

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sandy840126

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undeuxtrois

支持一下讲得很不错