--- service: d.root-servers.net start-period: '2016-05-02T00:00:00Z' end-period: '2016-05-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4437121976 dns-udp-queries-received-ipv6: 617994502 dns-tcp-queries-received-ipv4: 36191377 dns-tcp-queries-received-ipv6: 653004 dns-udp-responses-sent-ipv4: 4420431086 dns-udp-responses-sent-ipv6: 617763653 dns-tcp-responses-sent-ipv4: 36074190 dns-tcp-responses-sent-ipv6: 652832