What statement describes what DNS64 does?

DNS64 does not convert A record lookups; it provides an AAAA record response when only an A record exists for a name.

DNS64 functions as a critical component in IPv6 transition mechanisms, where it generates AAAA records for IPv4-only hosts, enabling IPv6-only clients to establish connections. The subsequent traffic sent to these synthesized IPv6 addresses is then handled by a NAT64 gateway, which performs the actual translation of the destination IPv6 address of the data traffic to an IPv4 address to reach the target server.

While DNS64 does synthesize AAAA records from A records, this statement describes a specific internal mechanism rather than the broader network-level translation outcome that is enabled through its cooperation with NAT64 for data traffic.

DNS64 and NAT64 facilitate translation from IPv6 to IPv4 for communication with IPv4-only hosts, not the translation of an IPv4 destination to an IPv6 address for the purpose of reaching IPv4-only destinations.