--- version: rssac002v3 service: d.root-servers.net start-period: '2019-01-20T00:00:00Z' end-period: '2019-01-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6207677841 dns-udp-queries-received-ipv6: 1398981406 dns-tcp-queries-received-ipv4: 216868811 dns-tcp-queries-received-ipv6: 42845608 dns-udp-responses-sent-ipv4: 6207685645 dns-udp-responses-sent-ipv6: 1398863912 dns-tcp-responses-sent-ipv4: 216560118 dns-tcp-responses-sent-ipv6: 42781041