Which two tasks allow NetFlow on a Cisco ASA 5500 Series firewall? (Choose two.)
A. Define a NetFlow collector by using the flow-export command
B. Create a class map to match interesting traffic
C. Create an ACL to allow UDP traffic on port 9996
D. Enable NetFlow Version 9
E. Apply NetFlow Exporter to the outside interface in the inbound direction
Answer is A and B.
Reference: https://www.cisco.com/c/en/us/td/docs/security/asa/special/netflow/guide/asa_netflow.html#pgfId-1330480
1st define flow collect then class-map