--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5397632481 dns-udp-queries-received-ipv6: 1769632835 dns-tcp-queries-received-ipv4: 301304023 dns-tcp-queries-received-ipv6: 63543398 dns-udp-responses-sent-ipv4: 5103287669 dns-udp-responses-sent-ipv6: 1768092768 dns-tcp-responses-sent-ipv4: 273756377 dns-tcp-responses-sent-ipv6: 63577644