Whichthreeofthefollowingdescriptionsaretrueaboutthefirewallmodes？（）A. Transparent mode is layer 2.B. Routed mode is layer 3.C. Routed mode has 1 IP address.D. Transparent mode has 1 IP address.

多项选择题

Which three of the following descriptions are true about the firewall modes？（）

A. Transparent mode is layer 2.
B. Routed mode is layer 3.
C. Routed mode has 1 IP address.
D. Transparent mode has 1 IP address.

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