--- service: d.root-servers.net start-period: '2016-04-14T00:00:00Z' end-period: '2016-04-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4446228649 dns-udp-queries-received-ipv6: 635541271 dns-tcp-queries-received-ipv4: 32243845 dns-tcp-queries-received-ipv6: 646991 dns-udp-responses-sent-ipv4: 4428793809 dns-udp-responses-sent-ipv6: 635286093 dns-tcp-responses-sent-ipv4: 32226300 dns-tcp-responses-sent-ipv6: 646972