--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7151450747 dns-udp-queries-received-ipv6: 975757888 dns-tcp-queries-received-ipv4: 273454356 dns-tcp-queries-received-ipv6: 73197512 dns-udp-responses-sent-ipv4: 6931871510 dns-udp-responses-sent-ipv6: 965994597 dns-tcp-responses-sent-ipv4: 251761750 dns-tcp-responses-sent-ipv6: 73346626