Implementing Cisco Network Security (IINS v3.0) (#138)

Which firewall configuration must you perform to allow traffic to flow in both directions between two zones?

You must configure two zone pairs, one for each direction.
You can configure a single zone pair that allows bidirectional traffic flows for any zone.
You can configure a single zone pair that allows bidirectional traffic flows for any zone except the self zone.
You can configure a single zone pair that allows bidirectional traffic flows only if the source zone is the less secure zone.