Which Two Options Are Characteristics of Firewall Transparent Mode Operations

Multiple Choice

Which two options are characteristics of firewall transparent mode operations in a firewall solution design? (Choose two.)

A) The firewall acts like a router hop in the network.
B) OSPF adjacencies can be established through the firewall.
C) Changes in the existing IP addressing and subnets are required.
D) Multicast traffic can traverse the firewall.
E) The firewall can participate actively on spanning tree.