--- service: j.root-servers.net start-period: '2016-06-20T00:00:00Z' end-period: '2016-06-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5844888664 dns-udp-queries-received-ipv6: 493459823 dns-tcp-queries-received-ipv4: 131320691 dns-tcp-queries-received-ipv6: 4495523 dns-udp-responses-sent-ipv4: 5721284014 dns-udp-responses-sent-ipv6: 496049484 dns-tcp-responses-sent-ipv4: 119885196 dns-tcp-responses-sent-ipv6: 2163828