--- service: j.root-servers.net start-period: '2015-03-15T00:00:00Z' end-period: '2015-03-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3053510628 dns-udp-queries-received-ipv6: 316287717 dns-tcp-queries-received-ipv4: 26204299 dns-tcp-queries-received-ipv6: 5305993 dns-udp-responses-sent-ipv4: 3062229506 dns-udp-responses-sent-ipv6: 316127883 dns-tcp-responses-sent-ipv4: 26025213 dns-tcp-responses-sent-ipv6: 4592436