--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5891283290 dns-udp-queries-received-ipv6: 1618068283 dns-tcp-queries-received-ipv4: 385696325 dns-tcp-queries-received-ipv6: 57405316 dns-udp-responses-sent-ipv4: 5608618991 dns-udp-responses-sent-ipv6: 1616554521 dns-tcp-responses-sent-ipv4: 318517295 dns-tcp-responses-sent-ipv6: 57526821