--- service: d.root-servers.net start-period: '2016-05-11T00:00:00Z' end-period: '2016-05-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4498084363 dns-udp-queries-received-ipv6: 656328826 dns-tcp-queries-received-ipv4: 34490038 dns-tcp-queries-received-ipv6: 644509 dns-udp-responses-sent-ipv4: 4479826685 dns-udp-responses-sent-ipv6: 656059626 dns-tcp-responses-sent-ipv4: 34397461 dns-tcp-responses-sent-ipv6: 643772