--- version: rssac002v3 service: d.root-servers.net start-period: '2019-01-25T00:00:00Z' end-period: '2019-01-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6665621178 dns-udp-queries-received-ipv6: 1522308585 dns-tcp-queries-received-ipv4: 257280854 dns-tcp-queries-received-ipv6: 47359542 dns-udp-responses-sent-ipv4: 6665587376 dns-udp-responses-sent-ipv6: 1522221748 dns-tcp-responses-sent-ipv4: 256616976 dns-tcp-responses-sent-ipv6: 47240052