Which of the statements about NAT64 is correct?

Question

Options

• ANAT64 translates unique local IPv6 addresses into global IPv6 addresses.
• BNAT64 is a stateless mechanism and allows end-to-end IPv6 communication.
• CNAT64 in cooperation with DNS64 is used to allow communication between IPv6-only hosts with
• DDual-stack hosts require NAT64 to reach IPv4 networks.

• A
  2% (1)
• B
  4% (2)
• C
  93% (53)
• D
  2% (1)

Explanation

(C) NAT64 works in conjunction with DNS64 to enable IPv6-only hosts to communicate with IPv4-only servers. DNS64 synthesizes AAAA records (IPv6) for IPv4-only destinations, and NAT64 then performs the protocol translation at the network boundary. (A) is false - NAT64 translates between IPv6 and IPv4 addresses, not between unique local and global IPv6 addresses. (B) is false - NAT64 is typically a stateful mechanism that maintains translation state; it does not provide true end-to-end IPv6 communication since it performs address/protocol translation. (D) is false - dual-stack hosts already have native IPv4 connectivity and do not need NAT64 to reach IPv4 networks.

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