Question

A network engineer needs to add a new monitoring sensor to inspect traffic on a critical production link. Management requires that any failure of the monitoring device must NOT interrupt production traffic flow, and the sensor only needs to observe traffic, not block it. Which deployment method best satisfies these requirements?

Accepted Answer

Deploy a passive network tap that copies traffic to the sensor out-of-band

Answer

Deploy the sensor inline so all traffic passes through it before reaching the destination

Answer

Configure the sensor as a stateful firewall in the traffic path

Answer

Route production traffic through the sensor and enable fail-closed mode