Go back to 642-637 - Securing Networks with Cisco Routers and Switches (SECURE) v1.0

Question :-

When configuring a zone-based policy firewall, what will be the resulting action if you do not specify any zone pairs for a possible pair of zones?
All sessions will pass through the zone without being inspected.
All sessions will be denied between these two zones by default.
All sessions will have to pass through the router "self zone" for inspection before being allowed to pass to the destination zone.
This configuration statelessly allows packets to be delivered to the destination zone.

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