A network engineer is notified that several employees are experiencing network performance
related issues, and bandwidth-intensive applications are identified as the root cause. In order to
identify which specific type of traffic is causing this slowness, information such as the
source/destination IP and Layer 4 port numbers is required. Which feature should the engineer
use to gather the required information?

A.
SNMP

B.
Cisco IOS EEM

C.
NetFlow

D.
Syslog

E.
WCCP