Certified Network Defender (CND) — Question 161

John, the network administrator and he wants to enable the NetFlow feature in Cisco routers to collect and monitor the IP network traffic passing through the router. Which command will John use to enable NetFlow on an interface?

Answer options

• A. Router IP route
• B. Router(Config-if) # IP route cache flow
• C. Router# Netmon enable
• D. Router# netflow enable

Correct answer: B

Explanation

The correct command to enable NetFlow on an interface is 'Router(Config-if) # IP route cache flow', which configures the interface to cache flow data. The other options are incorrect as 'Router IP route' does not pertain to enabling NetFlow, 'Router# Netmon enable' is not a valid command in this context, and 'Router# netflow enable' is also not the correct syntax for enabling NetFlow on an interface.