--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5985475346 dns-udp-queries-received-ipv6: 1711324478 dns-tcp-queries-received-ipv4: 381605543 dns-tcp-queries-received-ipv6: 60074053 dns-udp-responses-sent-ipv4: 5696460340 dns-udp-responses-sent-ipv6: 1709751645 dns-tcp-responses-sent-ipv4: 312672778 dns-tcp-responses-sent-ipv6: 60122665