You are responsible for monitoring the IP network. You have noticed since the beginning of your
shift that a particular interface on a network switch has been flapping, and it has finally gone down.
You open an incident ticket. According to the ITIL® v3 framework, what should you do to
determine if it is a recurring issue?

A.
Use Telnet to connect to the device and troubleshoot.

B.
Ping the device to verify connectivity.

C.
Perform a search of the known-error database.

D.
Clear the alarm from the event system to see if it recurs.

E.
Clear the interface counters and see if additional errors are incurred