--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5517648608 dns-udp-queries-received-ipv6: 1658040174 dns-tcp-queries-received-ipv4: 363209983 dns-tcp-queries-received-ipv6: 54609425 dns-udp-responses-sent-ipv4: 5242050071 dns-udp-responses-sent-ipv6: 1656549011 dns-tcp-responses-sent-ipv4: 297054404 dns-tcp-responses-sent-ipv6: 54710743