问一下CCNA的题

cwav

原文由 [B]小熊[/B] 发表:<br>QUESTION NO: 154<br>You work as a technician at TestKing .After configuring your router, you are unable to ping the directly<br>connected serial port of the neighboring router. The show running-config output displays the word<br>“shutdown” for the serial interface.<br>Which of the following lines will be displayed in the show interface s0 output?<br>A. Serial 0 is up, line protocol is down<br>B. Serial 0 is down, line protocol is down<br>C. Serial 0 is down, line protocol is up<br>D. Serial 0 is administratively down, line protocol is down<br>E. Serial 0 is administratively down, line protocol is up<br>F. Serial 0 is administratively up, line protocol is down<br>Answer: D<br><br>D和B什么区别?<br>

<br>D是默认的关闭状态，B是协议没有配置好

cwav

原文由 [B]小熊[/B] 发表:<br>QUESTION NO: 168<br>RouterA# show running-config<br>&lt;some output text omitted&gt;<br>interface serial0/0<br>bandwidth 64<br>ip address 172.16.100.2 255.255.0<br>encapsulation frame-relay<br>frame-relay map ip 172.16.100.1 200 broadcast<br><br><br>You work as a network administrator at the Hong Kong office of TestKing. There is communication<br>problem with the Tokyo branch office. The scenario is as follows:<br>Router TestKing1 is unable to reach Router TestKing2. Both routers are running IOS version 12.0. After<br>reviewing the command output and graphic.<br>You are required to inform your boss, Dr. King, of the most likely problem.<br>What should you tell him?<br>A. Incorrect bandwidth configuration<br>B. Incorrect LMI configuration<br>C. Incorrect map statement<br>D. Incorrect IP address<br><br>Answer: C<br><br>

<br><br>我觉得是B

chinamoon

d是管理员手动关闭的。“administratively down”<br>

原文由 [B]小熊[/B] 发表:<br>QUESTION NO: 154<br>You work as a technician at TestKing .After configuring your router, you are unable to ping the directly<br>connected serial port of the neighboring router. The show running-config output displays the word<br>“shutdown” for the serial interface.<br>Which of the following lines will be displayed in the show interface s0 output?<br>A. Serial 0 is up, line protocol is down<br>B. Serial 0 is down, line protocol is down<br>C. Serial 0 is down, line protocol is up<br>D. Serial 0 is administratively down, line protocol is down<br>E. Serial 0 is administratively down, line protocol is up<br>F. Serial 0 is administratively up, line protocol is down<br>Answer: D<br><br>D和B什么区别?<br>

chinamoon

如果那个地址255.255.0没有写错的话，应该是B，其他都不可能错了。B的话有不是默认的LMI。<br><br>

原文由 [B]cwav[/B] 发表:<br><br><br>我觉得是B<br>

cwav

；）居然没有看到那个255.255.0