Which three statements about firewall modes are correct? (Choose three.)

The correct answer is B. A firewall in transparent mode has one IP address. D. In routed mode, the firewall is considered to be a Layer 3 device. E. In transparent mode, the firewall is considered to be a Layer 2 device. In transparent (Layer 2) mode, the firewall acts as a 'bump in the wire'-it bridges traffic between two network segments without routing it. It requires only a single management IP address and is invisible to connected routers. In routed (Layer 3) mode, the firewall acts as a…

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AA firewall in routed mode has one IP address.
BA firewall in transparent mode has one IP address.
CIn routed mode, the firewall is considered to be a Layer 2 device.
DIn routed mode, the firewall is considered to be a Layer 3 device.
EIn transparent mode, the firewall is considered to be a Layer 2 device.
FIn transparent mode, the firewall is considered to be a Layer 3 device.

How the community answered

(19 responses)

B
84% (16)
C
5% (1)
F
11% (2)

Explanation

In transparent (Layer 2) mode, the firewall acts as a 'bump in the wire'-it bridges traffic between two network segments without routing it. It requires only a single management IP address and is invisible to connected routers. In routed (Layer 3) mode, the firewall acts as a full Layer 3 hop with an IP address on each active interface, and routing occurs between those interfaces. Statement A is false because a routed-mode firewall has an IP address per interface. Statement C is false because routed mode is Layer 3, not Layer 2. Statement F is false because transparent mode is Layer 2, not Layer 3.

Topics

#firewall modes#routed mode#transparent mode#Layer 2 firewall

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