--- service: d.root-servers.net start-period: '2016-05-05T00:00:00Z' end-period: '2016-05-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4411937614 dns-udp-queries-received-ipv6: 644676456 dns-tcp-queries-received-ipv4: 33020366 dns-tcp-queries-received-ipv6: 636222 dns-udp-responses-sent-ipv4: 4391482022 dns-udp-responses-sent-ipv6: 644422794 dns-tcp-responses-sent-ipv4: 32906320 dns-tcp-responses-sent-ipv6: 636067