What kind of Domain Name Service (DNS) resource record contains the IPv6 addresses of IPv6 nodes?

The type of Domain Name Service (DNS) resource record that contains the IPv6 addresses of IPv6 nodes is the AAAA record. This record is specifically designed to map a hostname to its corresponding IPv6 address, which is necessary for enabling communication over IPv6 networks. The AAAA record allows devices and services to be reachable using their human-readable domain names while leveraging the longer addresses used in IPv6.

In contrast, other types of records serve different purposes. For example, the A record maps hostnames to IPv4 addresses, while CNAME records provide a way to create an alias for an existing domain name, pointing one domain to another. MX records are utilized for routing email messages and specify the mail exchanges for a domain. Understanding the role of the AAAA record helps in managing network configurations that utilize IPv6, which is increasingly important as the demand for IP addresses continues to grow with the expansion of internet-connected devices.