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多項選擇題

While troubleshooting connectivity issues, you log into a remote router. From there,you wish to see the layer 1 and layer 2 status of the interface.
Which of the following IOS commands would you issue to check the current IP addressing, as well as theyer 1 and layer 2 status of an interface?（）

A. TK1# show version
B. TK1# show protocols
C. TK1# show interfaces
D. TK1# show controllers
E. TK1# show ip interface
F. TK1# show startup-config

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單項選擇題

While troubleshooting a connectivity issue from a PC you obtain the following information:
Local PC IP address: 190.0.3.35/24
Default Gateway: 190.0.3.1
Remote Server: 190.0.5.250/24
You then conduct the following tests from the local PC:
Ping 127.0.0.1 - Unsuccessful
Ping 190.0.3.35 - Successful
Ping 190.0.3.1 - Unsuccessful
Ping 190.0.5.250 - Unsuccessful
What is the underlying cause of this problem?（）

A. TCP/IP not correctly installed
B. Local physical layer problem
C. NIC not functioning
D. Remote physical layer problem

多項選擇題

Part of the configuration files for routers testking1 and testking2 are displayed below:
If you were to enter the "show interface serial 0" command on router testking1,which of the following will be displayed?（）

A. Serial 0 is down, line protocol is down
B. Serial 0 is up, line protocol is up
C. Open: IPCP, CDPCP
D. LCP closed
E. LCP open