CCNA640-802 V13题库试题分析16(艾迪飞吴老师讲解)

冷血

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><FONT face="Times New Roman"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore">1．<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp; </SPAN></SPAN></SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">Refer to the exhibit. Hosts in network 192.168.2.0 are unable to reach hosts in network 192.168.3.0. Based on the output from RouterA, what are two possible reasons for the failure? (Choose two.)</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><FONT face="Times New Roman"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p> 1.jpg (28.05 KB, 下载次数: 5)

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"></v:path><o:lock v:ext="edit" aspectratio="t"></o:lock></v:shapetype><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.3pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">A. The cable that is connected to S0/0 on RouterA is faulty.<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12.65pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">B. Interface S0/0 on RouterB is administratively down. <o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12.65pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">C. Interface S0/0 on RouterA is configured with an incorrect subnet mask.<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12.65pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">D. The IP address that is configured on S0/0 of RouterB is not in the correct subnet.<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12.65pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">E. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12.65pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">F. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA.<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12.65pt; TEXT-ALIGN: left; mso-line-height-rule: exactly; mso-layout-grid-align: none" align=left><SPAN lang=EN-US style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">Answer: EF<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt">解释一下：</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">串行接口的状态为一个</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">up</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一个</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">down</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，出现的可能的情况有：没有收到</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">keeplive</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的报文，或是接口的时钟频率没有设置，或是接口封装不匹配，这些都有可能导致接口的链路层为</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">down</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的。</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"><o:p><FONT face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"><o:p><FONT face="Times New Roman">&nbsp;

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