<DIV>B.&nbsp;錯誤</DIV>
<DIV>45、指定邏輯通道備份主接口使用的命令是：（A ）</DIV>
<DIV>A.&nbsp;backup logic-channel number [ priority ]</DIV>
<DIV>B.&nbsp;backup interface interface-type interface-number </DIV>
<DIV>C.&nbsp;logic-channel logic-channel-number</DIV>
<DIV>E. dialer map protocol next-hop-address dialer-string [ lin logic-channel-number ]</DIV>
<DIV>46、某臺路由器有兩個以太網接口，分別與不同網段的以太網相連，請問：該路由器最多可以參加多少個不同的HSRP備份組？（ E）</DIV>
<DIV>A. 1個</DIV>
<DIV>B. 2個</DIV>
<DIV>C. 3個</DIV>
<DIV>D. 4個</DIV>
<DIV>E. 多于4個</DIV>
<DIV>47、一些上網用戶抱怨他們不能夠發送Email了，但他們仍然能夠接收到新的Email信件。那么，作為管理員，下面哪一個項是首先應該檢查的：（ B）</DIV>
<DIV>A.該Email服務器目前是否未連接到網絡上？</DIV>
<DIV>B.處于客戶端和Email服務器之間的Quidway路由器接口的訪問列表項是否隱含了deny SMTP流量的條目？</DIV>
<DIV>C.處于客戶端和Email服務器之間的Quidway路由器接口的訪問列表項是否隱含了deny any的條目？</DIV>
<DIV>D.處于客戶端和Email服務器之間的Quidway路由器接口的訪問列表項是否隱含了deny POP流量的條目？</DIV>
<DIV>48、作為一個網絡維護人員，對于OSPF區域體系結構的原則必須有清楚的了解，下面的論述表達正確的是：（ ABC）</DIV>
<DIV>A. 所有的OSPF區域必須通過域邊界路由器與區域0相連，或采用OSPF虛鏈路。</DIV>
<DIV>B. 所有區域間通信必須通過骨干區域0，因此所有區域路由器必須包含到區域0的路由；</DIV>
<DIV>C. 單個區域不能包含沒有物理鏈路的兩個區域邊界路由器。</DIV>
<DIV>D. 虛鏈路可以穿越stub區域。</DIV>
<DIV>49、如下圖所示組網圖中，</DIV>
<DIV>假設各主機上默認網關配置正確。 </DIV>
<DIV>具體配置如下。</DIV>
<DIV>Current configuration</DIV>
<DIV>!</DIV>
<DIV>version 1.4.1</DIV>
<DIV>hostname RouterA</DIV>
<DIV>frame-relay switching</DIV>
<DIV>!</DIV>
<DIV>interface Ethernet0 </DIV>
<DIV>ip address 10.0.0.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial0 </DIV>
<DIV>encapsulation frame-relay</DIV>
<DIV>frame-relay intf-type DCE</DIV>
<DIV>frame-relay local-dlci 100</DIV>
<DIV>ip address 10.0.1.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>ip route 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 </DIV>
<DIV>!</DIV>
<DIV>End</DIV>
<DIV>&nbsp;</DIV>
<DIV>Current configuration</DIV>
<DIV>!</DIV>
<DIV>version 1.4.1</DIV>
<DIV>hostname RouterB</DIV>
<DIV>!</DIV>
<DIV>interface Ethernet0 </DIV>
<DIV>ip address 10.0.2.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial0 </DIV>
<DIV>clock-select DTECLK1</DIV>
<DIV>encapsulation frame-relay</DIV>
<DIV>ip address 10.0.1.2 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>exit</DIV>
<DIV>ip route 10.0.0.0 255.0.0.0 10.0.1.1 preference 60 </DIV>
<DIV>!</DIV>
<DIV>End</DIV>
<DIV>&nbsp;</DIV>
<DIV>則結論PcA可以ping通PcB是否正確？（ A）</DIV>
<DIV>A．正確</DIV>
<DIV>B．錯誤</DIV>
<DIV>50、在下面的網絡中（如圖所示），Quidway路由器配置命令如下（PC默認網關配置正確）：</DIV>
<DIV>RouterA#show running-config</DIV>
<DIV>Now create configuration...</DIV>
<DIV>Current configuration</DIV>
<DIV>!</DIV>
<DIV>version 1.4.1</DIV>
<DIV>!</DIV>
<DIV>interface Ethernet0 </DIV>
<DIV>speed auto</DIV>
<DIV>duplex auto</DIV>
<DIV>no loopback</DIV>
<DIV>ip address 192.168.1.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial0 </DIV>
<DIV>clock-select DTECLK3</DIV>
<DIV>encapsulation ppp</DIV>
<DIV>ip address 10.1.1.2 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial1 </DIV>
<DIV>encapsulation ppp</DIV>
<DIV>ip address 10.1.3.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>exit</DIV>
<DIV>router rip</DIV>
<DIV>network all</DIV>
<DIV>!</DIV>
<DIV>&nbsp;</DIV>
<DIV>end</DIV>
<DIV>RouterB#show running-config</DIV>
<DIV>Now create configuration...</DIV>
<DIV>Current configuration</DIV>
<DIV>!</DIV>
<DIV>version 1.4.1</DIV>
<DIV>!</DIV>
<DIV>interface Ethernet0 </DIV>
<DIV>speed auto</DIV>
<DIV>duplex auto</DIV>
<DIV>no loopback</DIV>
<DIV>ip address 192.168.2.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial0 </DIV>
<DIV>encapsulation ppp</DIV>
<DIV>ip address 10.1.1.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial1 </DIV>
<DIV>encapsulation ppp</DIV>
<DIV>ip address 10.1.2.1 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>exit</DIV>
<DIV>router rip</DIV>
<DIV>network all</DIV>
<DIV>!</DIV>
<DIV>&nbsp;</DIV>
<DIV>end</DIV>
<DIV>RouterC#show running-config</DIV>
<DIV>Now create configuration...</DIV>
<DIV>Current configuration</DIV>
<DIV>!</DIV>
<DIV>version 1.4.1</DIV>
<DIV>!</DIV>
<DIV>interface Ethernet0 </DIV>
<DIV>speed auto</DIV>
<DIV>duplex auto</DIV>
<DIV>no loopback</DIV>
<DIV>!</DIV>
<DIV>interface Serial0 </DIV>
<DIV>clock-select DTECLK1</DIV>
<DIV>encapsulation ppp</DIV>
<DIV>ip address 10.1.2.2 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>interface Serial1 </DIV>
<DIV>clock-select DTECLK1</DIV>
<DIV>encapsulation ppp</DIV>
<DIV>ip address 10.1.3.2 255.255.255.0</DIV>
<DIV>!</DIV>
<DIV>exit</DIV>
<DIV>router rip</DIV>
<DIV>network all</DIV>
<DIV>!</DIV>
<DIV>end</DIV>
<DIV>以下說法正確的是：（AC ）</DIV>
<DIV>A.PCA可以ping通PCB;</DIV>
<DIV>B.PCA不可以ping通PCB;</DIV>
<DIV>C.RouterA可以ping通RouterC;</DIV>
<DIV>D.RouterA不可以ping通RouterB</DIV>
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藍天學院網絡中心 <em>By</em> wwj
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