Which tool would you use to meet these requirements?

You want to gather as much detail as possible during a network audit, to include data time stamping across a large number of interfaces, customized according to interface, with a minimal impact on the network devices themselves. Which tool would you use to meet these requirements?
A. RMON
B. SNMPv3
C. NetFlow
D. Cisco Discovery Protocol

Correct Answer: C
Explanation/Reference:
NetFlow provides extremely granular and accurate traffic measurements and a high-level collection of aggregated traffic. The output of netflow information is displayed via the show ip cache flow command on routers. The Table shows a description of the fields for NetFlow output. Table. Netflow Output escription