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NSE4 · Question #315

Which statements about One-to-One IP pool are true? (Choose two.)

The correct answer is B. It allows fixed mapping of an internal address range to an external address range. C. It is used for destination NAT. A One-to-One IP pool establishes a fixed, direct mapping between an internal IP address range and an external IP address range, typically used for destination NAT.

Submitted by asante_acc· Apr 18, 2026Firewall Policies and Authentication

Question

Which statements about One-to-One IP pool are true? (Choose two.)

Options

  • AIt allows configuration of ARP replies.
  • BIt allows fixed mapping of an internal address range to an external address range.
  • CIt is used for destination NAT.
  • DIt does not use port address translation.

How the community answered

(27 responses)
  • A
    4% (1)
  • B
    93% (25)
  • D
    4% (1)

Why each option

A One-to-One IP pool establishes a fixed, direct mapping between an internal IP address range and an external IP address range, typically used for destination NAT.

AIt allows configuration of ARP replies.

ARP replies are part of the Layer 2 network protocol for address resolution, and while related to IP addresses, their configuration is not a direct feature or capability of an IP pool object.

BIt allows fixed mapping of an internal address range to an external address range.Correct

One-to-One IP pools are specifically designed to create a fixed, static mapping where an internal range of IP addresses is translated directly to a corresponding external range of IP addresses.

CIt is used for destination NAT.Correct

One-to-One IP pools are frequently utilized in destination NAT (DNAT) configurations to publish internal servers or services to the internet using a public IP address range.

DIt does not use port address translation.

While One-to-One NAT, which uses this type of IP pool, inherently does not perform Port Address Translation (PAT), this statement describes the behavior of the NAT process rather than a direct configurable property or definition of the IP pool itself.

Concept tested: FortiGate One-to-One IP pools

Source: https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/765355/ip-pools

Topics

#NAT#IP Pools#One-to-One NAT#Static NAT

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