An organization is implementing Cisco FTD using transparent mode in the network. Which rule in the default Access Control Policy ensures that this deployment does not create a loop in the network?
A.
Multicast and broadcast packets are denied by default
BPDU Handling
To prevent loops using the Spanning Tree Protocol, BPDUs are passed by default.
By default BPDUs are also forwarded for advanced inspection, which is unnecessary for this type of packet, and which can cause problems if they are blocked due to an inspection restart, for example. We recommend that you always exempt BPDUs from advanced inspection. To do so, use FlexConfig to configure an EtherType ACL that trusts BPDUs and exempts them from advanced inspection on each member interface. See FlexConfig Policies for FTD.
https://www.cisco.com/c/en/us/td/docs/security/firepower/630/configuration/guide/fpmc-config-guide-v63/transparent_or_routed_firewall_mode_for_firepower_threat_defense.html
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