--- service: j.root-servers.net start-period: '2016-07-18T00:00:00Z' end-period: '2016-07-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5954299901 dns-udp-queries-received-ipv6: 742597298 dns-tcp-queries-received-ipv4: 145491117 dns-tcp-queries-received-ipv6: 3844708 dns-udp-responses-sent-ipv4: 5838228080 dns-udp-responses-sent-ipv6: 747289521 dns-tcp-responses-sent-ipv4: 124118476 dns-tcp-responses-sent-ipv6: 947728