--- service: j.root-servers.net start-period: '2015-06-11T00:00:00Z' end-period: '2015-06-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3156553496 dns-udp-queries-received-ipv6: 220551119 dns-tcp-queries-received-ipv4: 27460527 dns-tcp-queries-received-ipv6: 25837216 dns-udp-responses-sent-ipv4: 3078379392 dns-udp-responses-sent-ipv6: 220487366 dns-tcp-responses-sent-ipv4: 26677971 dns-tcp-responses-sent-ipv6: 19738541