--- service: j.root-servers.net start-period: '2015-11-18T00:00:00Z' end-period: '2015-11-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3745389233 dns-udp-queries-received-ipv6: 407542649 dns-tcp-queries-received-ipv4: 72279892 dns-tcp-queries-received-ipv6: 1638561 dns-udp-responses-sent-ipv4: 3659883048 dns-udp-responses-sent-ipv6: 410280621 dns-tcp-responses-sent-ipv4: 68453601 dns-tcp-responses-sent-ipv6: 299894