Quick Answer

The correct answer is NAT64, which translates IPv6 addresses to IPv4 addresses for interoperation. This is distinct from the other NAT types because it bridges two different address families, whereas Static NAT, Dynamic NAT, and PAT/Overload all operate solely within IPv4. Static NAT maps a single private IP to a fixed public IP, Dynamic NAT uses a pool of public IPs assigned on a first-come basis, and PAT—also called Overload—maps multiple private IPs to one public IP by differentiating traffic with unique port numbers. On the ENCOR 350-401 exam, this drag-and-drop task tests your ability to distinguish these core NAT variations, and a common trap is confusing NAT64 with PAT since both involve translation, but NAT64 is specifically for IPv6-to-IPv4 conversion. For a quick memory tip: think “Static = one-to-one fixed, Dynamic = one-to-one from a pool, PAT/Overload = many-to-one with ports, NAT64 = crossing the IPv6-to-IPv4 bridge.”