Your company provides a VoIP service. Customers are informing your call center that they are not
getting a dial tone. You are able to establish a Telnet session into the primary call manager across
the network. From the primary call manager, you are unable to ping the CPE. You are able to ping
the CPE from the secondary call manager.
After failing over to the secondary call manager, which three items should you focus on to resolve
this performance problem? (Choose three.)
A.
routing problems in the network between the primary call manager and CPE
B.
bad network port in the primary call manager
C.
DoS attack on the primary call manager
D.
syslog in the secondary call manager
E.
syslog in the primary call manager
F.
maintenance changes to either call manager, the network, or CPE configurations