Implementing Cisco Network Security (IINS, legacy) — Question 22

How does the transparent firewall process traffic through the ASA?

Answer options

• A. The firewall permits IPv6 and IPv4 traffic from higher security interfaces to lower security interfaces without an ACL.
• B. The firewall permits Layer 3 traffic from lower security interfaces to higher security interfaces if a standard ACL is configured on the lower security interface.
• C. The firewall permits broadcast and multicast traffic from higher security interfaces to lower security interfaces without an ACL.
• D. The firewall requires ARPs to be inspected before they are allowed through the firewall.

Correct answer: B

Explanation

Option B is correct because a standard ACL is required for traffic flowing from lower to higher security interfaces in a transparent firewall configuration. Options A and C are incorrect as they misstate the ACL requirements for traffic flow, and option D is wrong because ARP inspection is not a prerequisite for all ARP traffic.