--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5680585951 dns-udp-queries-received-ipv6: 1682255621 dns-tcp-queries-received-ipv4: 352543764 dns-tcp-queries-received-ipv6: 61549539 dns-udp-responses-sent-ipv4: 5420027246 dns-udp-responses-sent-ipv6: 1680782908 dns-tcp-responses-sent-ipv4: 290026702 dns-tcp-responses-sent-ipv6: 61568844