--- service: j.root-servers.net start-period: '2016-06-30T00:00:00Z' end-period: '2016-06-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5896733800 dns-udp-queries-received-ipv6: 724285889 dns-tcp-queries-received-ipv4: 156201527 dns-tcp-queries-received-ipv6: 6434296 dns-udp-responses-sent-ipv4: 5788606856 dns-udp-responses-sent-ipv6: 729619706 dns-tcp-responses-sent-ipv4: 138280199 dns-tcp-responses-sent-ipv6: 3637979