--- version: rssac002v3 service: d.root-servers.net start-period: '2019-01-15T00:00:00Z' end-period: '2019-01-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6459144597 dns-udp-queries-received-ipv6: 1633750548 dns-tcp-queries-received-ipv4: 197102394 dns-tcp-queries-received-ipv6: 132369454 dns-udp-responses-sent-ipv4: 6459142836 dns-udp-responses-sent-ipv6: 1633591973 dns-tcp-responses-sent-ipv4: 196681817 dns-tcp-responses-sent-ipv6: 132156874