A customer work group notifies you that they are trying to reach a custom application on a server.
The server is in a different IP domain. You have verified that the application is up. You can
successfully run ping and traceroute to the server from the workgroup workstations. What would
you look for next?
A.
a MTU mismatch problem
B.
a mis-configured router port
C.
a blocked UDP/TCP port
D.
a corrupt TCP session