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NSE4 · Question #32

Which statements are correct for port pairing and forwarding domains? (Choose two.)

The correct answer is A. They both create separate broadcast domains. D. They may contain physical and/or virtual interfaces. Both port pairing, used in transparent mode, and forwarding domains are mechanisms to segment networks by creating separate Layer 2 broadcast domains, and they can both incorporate physical and/or virtual interfaces.

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

Question

Which statements are correct for port pairing and forwarding domains? (Choose two.)

Options

  • AThey both create separate broadcast domains.
  • BPort Pairing works only for physical interfaces.
  • CForwarding Domain only applies to virtual interfaces.
  • DThey may contain physical and/or virtual interfaces.

How the community answered

(17 responses)
  • A
    88% (15)
  • B
    6% (1)
  • C
    6% (1)

Why each option

Both port pairing, used in transparent mode, and forwarding domains are mechanisms to segment networks by creating separate Layer 2 broadcast domains, and they can both incorporate physical and/or virtual interfaces.

AThey both create separate broadcast domains.Correct

In transparent mode, port pairing links two interfaces to form a Layer 2 bridge, effectively creating a separate broadcast domain, while forwarding domains explicitly define isolated Layer 2 broadcast domains within the FortiGate.

BPort Pairing works only for physical interfaces.

While port pairing is commonly associated with physical interfaces, the general concept of interface grouping and forwarding domains can encompass virtual interfaces as well.

CForwarding Domain only applies to virtual interfaces.

Forwarding domains are not limited to virtual interfaces; they can be configured on both physical and virtual interfaces for Layer 2 segmentation.

DThey may contain physical and/or virtual interfaces.Correct

Forwarding domains can include both physical interfaces (e.g., hardware ports) and virtual interfaces (e.g., VLAN sub-interfaces, software switch members), offering flexible Layer 2 segmentation.

Concept tested: FortiGate transparent mode, port pairing, forwarding domains

Source: https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/33912/transparent-mode

Topics

#port pairing#forwarding domains#broadcast domains#network segmentation

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