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201 · Question #83

Which two statements are true about NATs. (Choose two.)

The correct answer is A. NATs support UDP, TCP, and ICMP traffic. C. NATs provide a onetoone mapping between IP addresses. F5 NATs, often referring to static NAT objects, provide a one-to-one mapping between addresses and support various IP protocols including TCP, UDP, and ICMP.

Section 2: Configure Load Balancing Features

Question

Which two statements are true about NATs. (Choose two.)

Options

  • ANATs support UDP, TCP, and ICMP traffic.
  • BNATs can be configured with mirroring enabled or disabled.
  • CNATs provide a onetoone mapping between IP addresses.
  • DNATs provide a manytoone mapping between IP addresses.

How the community answered

(40 responses)
  • A
    90% (36)
  • B
    8% (3)
  • D
    3% (1)

Why each option

F5 NATs, often referring to static NAT objects, provide a one-to-one mapping between addresses and support various IP protocols including TCP, UDP, and ICMP.

ANATs support UDP, TCP, and ICMP traffic.Correct

F5 NATs are capable of translating traffic for various IP protocols, including TCP, UDP, and ICMP, allowing seamless communication while changing source or destination addresses.

BNATs can be configured with mirroring enabled or disabled.

While connection mirroring is a feature for high availability on F5 devices, it is primarily configured on virtual servers or globally for connection table synchronization, not as a fundamental characteristic of the NAT object itself.

CNATs provide a onetoone mapping between IP addresses.Correct

An F5 NAT configuration creates a static, one-to-one mapping between a specific original IP address and a translated IP address, often used for exposing internal services publicly with a dedicated public IP.

DNATs provide a manytoone mapping between IP addresses.

While Source Network Address Translation (SNAT) often provides a many-to-one mapping, a basic F5 NAT object specifically defines a one-to-one static mapping.

Concept tested: F5 NAT characteristics and protocol support

Source: https://techdocs.f5.com/en-us/bigip-15-0-0/big-ip-system-concepts-and-configuration/network-address-translation-nat.html

Topics

#NAT#IP address translation#TCP/UDP/ICMP

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