--- service: i.root-servers.net start-period: '2015-11-24T00:00:00Z' end-period: '2015-11-25T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4927776293 dns-udp-queries-received-ipv6: 354993302 dns-tcp-queries-received-ipv4: 30178091 dns-tcp-queries-received-ipv6: 752650 dns-udp-responses-sent-ipv4: 4879129794 dns-udp-responses-sent-ipv6: 360753031 dns-tcp-responses-sent-ipv4: 30116838 dns-tcp-responses-sent-ipv6: 754936