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NSE4 · Question #121

Which of the following is true regarding Switch Port Mode?

The correct answer is A. Allows all internal ports to share the same subnet. Switch port mode on a FortiGate groups multiple physical ports to function as a single Layer 2 switch, allowing devices connected to these ports to share the same subnet and broadcast domain.

Submitted by tunde_lagos· Apr 18, 2026FortiGate Deployment and System Configuration

Question

Which of the following is true regarding Switch Port Mode?

Options

  • AAllows all internal ports to share the same subnet.
  • BProvides separate routable interfaces for each internal port.
  • CAn administrator can select ports to be used as a switch.
  • DConfigures ports to be part of the same broadcast domain.

How the community answered

(41 responses)
  • A
    90% (37)
  • B
    2% (1)
  • C
    2% (1)
  • D
    5% (2)

Why each option

Switch port mode on a FortiGate groups multiple physical ports to function as a single Layer 2 switch, allowing devices connected to these ports to share the same subnet and broadcast domain.

AAllows all internal ports to share the same subnet.Correct

When FortiGate interfaces are configured in switch mode, they operate as a layer 2 switch, effectively sharing a single logical interface, IP address, and subnet, and thus belonging to the same broadcast domain. This configuration simplifies network management by allowing multiple devices to connect to the FortiGate within the same IP segment without requiring routing between them.

BProvides separate routable interfaces for each internal port.

Providing separate routable interfaces for each internal port describes a configuration where ports are distinct Layer 3 interfaces, not switch mode, which implies bridging.

CAn administrator can select ports to be used as a switch.
DConfigures ports to be part of the same broadcast domain.

Concept tested: FortiGate switch port configuration

Source: https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/523287/interface-types

Topics

#FortiGate Interfaces#Network Configuration#Software Switch#Subnetting

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