--- service: j.root-servers.net start-period: '2014-05-18T00:00:00Z' end-period: '2014-05-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2752426163 dns-udp-queries-received-ipv6: 224134956 dns-tcp-queries-received-ipv4: 22454996 dns-tcp-queries-received-ipv6: 3116772 dns-udp-responses-sent-ipv4: 2751495925 dns-udp-responses-sent-ipv6: 223835218 dns-tcp-responses-sent-ipv4: 21486749 dns-tcp-responses-sent-ipv6: 207