--- service: j.root-servers.net start-period: '2016-04-20T00:00:00Z' end-period: '2016-04-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6105469100 dns-udp-queries-received-ipv6: 635040858 dns-tcp-queries-received-ipv4: 175462035 dns-tcp-queries-received-ipv6: 2968629 dns-udp-responses-sent-ipv4: 5754543847 dns-udp-responses-sent-ipv6: 634345520 dns-tcp-responses-sent-ipv4: 153769214 dns-tcp-responses-sent-ipv6: 347734