Exam 200-120 Question id=47 Troubleshooting

2routers

R1# sh ip int br Interface IP-Address OK? Method Status Protocol FastEthernet0/0 172.16.1.1 YES manual up up Serial0/0 10.1.1.1 YES manual up down Serial0/1 unassigned YES NVRAM administratively down down

Hosts with ip address 172.16.1.10 are unable to reach hosts in network 192.168.1.0/24. Based on the output from R1, what are two possible reasons for the failure?

A. The cable that is connected to serial0/0 on R1 is broken.
B. Interface S0/0 on R2 is administratively down.
C. Interface S0/0 on R1 is configured with an incorrect subnet mask.
D. The IP address that is configured on S0/0 of R2 is not in the correct subnet.
E. Interface S0/0 on R1 is not receiving a clock signal from the CSU/DSU.
F. The encapsulation that is configured on S0/0 of R2 does not match the encapsulation that is configured on S0/0 of R1.
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Serial0/0 physical status (OSI Level 1) is UP. The broken cable is physical problem.
Serial0/0 data status (OSI Level 2) is DOWN
so is L2 is down and more upper levels like ip address/subnet mask not problem now.




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