--- service: i.root-servers.net start-period: '2015-11-26T00:00:00Z' end-period: '2015-11-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4401553922 dns-udp-queries-received-ipv6: 319138534 dns-tcp-queries-received-ipv4: 25215359 dns-tcp-queries-received-ipv6: 757473 dns-udp-responses-sent-ipv4: 4358377816 dns-udp-responses-sent-ipv6: 321996237 dns-tcp-responses-sent-ipv4: 25103520 dns-tcp-responses-sent-ipv6: 759942