--- version: rssac002v3 service: d.root-servers.net start-period: '2018-12-19T00:00:00Z' end-period: '2018-12-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6312471571 dns-udp-queries-received-ipv6: 1449429639 dns-tcp-queries-received-ipv4: 393958648 dns-tcp-queries-received-ipv6: 37087240 dns-udp-responses-sent-ipv4: 6312488357 dns-udp-responses-sent-ipv6: 1449310172 dns-tcp-responses-sent-ipv4: 393777979 dns-tcp-responses-sent-ipv6: 37063900