Exam 210-260 topic 2 question 54 discussion

https://www.cisco.com/c/en/us/td/docs/security/asa/asa95/configuration/general/asa-95-general-config/intro-fw.html

Allowing Layer 3 Traffic Unicast IPv4 and IPv6 traffic is allowed through the bridge group automatically from a higher security interface to a lower security interface, without an access rule. For Layer 3 traffic traveling from a low to a high security interface, an access rule is required on the low security interface. ARPs are allowed through the bridge group in both directions without an access rule. ARP traffic can be controlled by ARP inspection. IPv6 neighbor discovery and router solicitation packets can be passed using access rules. Broadcast and multicast traffic can be passed using access rules.

The answer is A. Standard ACLs cannot be applied to interfaces to control traffic. For routed mode, the following types of traffic are allowed through by default: - Unicast IPv4 traffic from a higher security interface to a lower security interface. - Unicast IPv6 traffic from a higher security interface to a lower security interface. For transparent mode, the following types of traffic are allowed through by default: - ARPs in both directions. - BPDUs in both directions. - Unicast IPv4 traffic from a higher security interface to a lower security interface. - Unicast IPv6 traffic from a higher security interface to a lower security interface.