--- version: rssac002v3 service: d.root-servers.net start-period: '2019-12-30T00:00:00Z' end-period: '2019-12-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8469941321 dns-udp-queries-received-ipv6: 1491414048 dns-tcp-queries-received-ipv4: 727926685 dns-tcp-queries-received-ipv6: 101954082 dns-udp-responses-sent-ipv4: 8470009207 dns-udp-responses-sent-ipv6: 1491367418 dns-tcp-responses-sent-ipv4: 727819145 dns-tcp-responses-sent-ipv6: 101756716