What type of address translation does a NAT perform?

The correct answer is A. Private to public. Network Address Translation (NAT) maps private (RFC 1918) IP addresses used on internal networks - such as 192.168.x.x, 10.x.x.x, or 172.16.x.x - to a public IP address routable on the internet. This conserves public IP space and also provides a layer of obscurity for internal…

Submitted by omar99· Apr 18, 2026Network Security

Question

Options

APrivate to public
BLogical to physical
CPhysical Io logical
DPublic to private

How the community answered

(27 responses)

A
93% (25)
B
4% (1)
D
4% (1)

Explanation

Network Address Translation (NAT) maps private (RFC 1918) IP addresses used on internal networks - such as 192.168.x.x, 10.x.x.x, or 172.16.x.x - to a public IP address routable on the internet. This conserves public IP space and also provides a layer of obscurity for internal hosts. Options B and C describe ARP (Address Resolution Protocol), which maps logical IP addresses to physical MAC addresses. Option D (public to private) describes the reverse translation that occurs when return traffic comes back, but the defining direction of NAT is private-to-public.

Topics

#Network Address Translation#IP Addressing#Networking Fundamentals

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