In a dual-stack network with two dual-stack NetFlow collectors, how many flow exporters are required per device in a Flexible NetFlow configuration?

In a dual-stack network, devices process both IPv4 and IPv6 traffic. For Flexible NetFlow to export flow records for both protocols, a separate flow exporter is typically configured for each IP version. Therefore, one exporter would handle IPv4 flows and another would handle IPv6 flows. Since the question specifies two dual-stack NetFlow collectors, each of these two exporters can be configured to send its respective IPv4 or IPv6 flow data to both collectors. Thus, two flow exporters are required per device: one for IPv4 and one for IPv6. Options 1, 4, and 8 are incorrect because they do not account for the need to export both IPv4 and IPv6 flows separately.