Exam 350-401 topic 1 question 240 discussion

The answer is B : 2, but not because of IPv4 and IPV6. A dual-stack device is a device with network interfaces that can originate and understand both IPv4 and IPv6 packets. It is because each flow collector can only send to a single destination. In this question there are two NetFlow collectors... thus two destination. Thus the need for 2 flow exporters. Each flow exporter supports only one destination. If you want to export the data to multiple destinations, you must configure multiple flow exporters and assign them to the flow monitor. You can export to a destination using either an IPv4 or IPv6 address. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/15-mt/fnf-15-mt-book/cfg-de-fnflow-exprts.html Look under the section "Configuring the Flow Exporter"

Two flow exporters, one that matches ipv4 and one that matches ipv6

B is correct

In a dual-stack network where both IPv4 and IPv6 traffic are being monitored and analyzed, with two dual-stack NetFlow collectors, each capable of handling both IPv4 and IPv6 flows, you'll typically need to configure two flow exporters per network device. One flow exporter would handle IPv4 flows, and the other would handle IPv6 flows. This configuration ensures that both IPv4 and IPv6 flow data can be properly exported to the respective NetFlow collectors. So, the correct answer is:B

B is correct because TWO dual-stack NetFlow collectors = two exporters

Answer B.

6-4=2 b is the correct answer

In a dual-stack network with two dual-stack NetFlow collectors, only one flow exporter is needed per network device in the flexible NetFlow configuration. In the context of NetFlow, a flow exporter is responsible for sending NetFlow data (flow records) to the configured NetFlow collectors. In a dual-stack network, both IPv4 and IPv6 traffic is present, and since the network management is already 100% IPv6 enabled, the NetFlow data for both IPv4 and IPv6 flows will be sent to the two dual-stack NetFlow collectors. So, regardless of whether the network device is handling both IPv4 and IPv6 traffic (dual-stack) or just one of them, a single flow exporter is sufficient to send flow records to the two dual-stack NetFlow collectors. The correct answer is A. 1 flow exporter per network device.

Provided answer is correct

@DJOHNR is right, two exporters for two dual stack collectors. Two dual stack collector have 4 IPs (two IPv4 and two IPv6), which doesn't mean that 4 exporters needed.

If you use the legacy "ip flow-export" way of configuring things you can set multiple destinations so the answer could be 1. But they ask specifically for the "Cisco" way because it states flexible netflow. Using the Cisco way with the command "flow exporter <WORD>" you can set only 1 destination per flow exporter, so you'll need to configure 2 flow exporter. B is correct.

one exporter but 2 monitorars ... so A

I think A is correct , It says per Network!