--- service: i.root-servers.net start-period: '2015-11-12T00:00:00Z' end-period: '2015-11-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4759212441 dns-udp-queries-received-ipv6: 325894724 dns-tcp-queries-received-ipv4: 27999768 dns-tcp-queries-received-ipv6: 791415 dns-udp-responses-sent-ipv4: 4684450636 dns-udp-responses-sent-ipv6: 331549664 dns-tcp-responses-sent-ipv4: 28149282 dns-tcp-responses-sent-ipv6: 782093