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.)
A.
The cable that is connected to S0/0 on RouterA is faulty.
B.
Interface S0/0 on RouterB is administratively down.
C.
Interface S0/0 on RouterA is configured with an incorrect subnet mask.
D.
The IP address that is configured on S0/0 of RouterB is not in the correct subnet.
E.
Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.
F.
The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is
configured on S0/0 of RouterA.
Explanation:
http://www.cisco.com/en/US/docs/routers/access/800/819/software/configuration/Guide/6ser_co
nf. html
I don’t understand why it’s not A and B..
protocol DOWN means that it is problem at the layer 2 (encapsulation problem, clockrate problem-csu/dsu)
A and B refears to problems at layer 1, we can see that layer 1 is ok because the status is UP