What does ExternalZone represent in the presented rule?

A . The Internet.
B . Interfaces that administrator has defined to be part of External Security Zone.
C . External interfaces on all security gateways.
D . External interfaces of specific gateways.

Answer: B

Explanation:

Configuring Interfaces

Configure the Security Gateway 80 interfaces in the Interfaces tab in the Security Gateway window.

To configure the interfaces:

From the Devices window, double-click the Security Gateway 80.

The Security Gateway window opens.

Select the Interfaces tab. Select Use the following settings . The interface settings open. Select the interface and click Edit .

The Edit window opens.

From the IP Assignment section, configure the IP address of the interface: Select Static IP . Enter the IP address and subnet mask for the interface. In Security Zone , select Wireless , DMS , External , or Internal . Security zone is a type of zone, created by a bridge to easily create segments, while maintaining IP addresses and router configurations. Security zones let you choose if to enable or not the firewall between segments.