--- service: j.root-servers.net start-period: '2015-12-14T00:00:00Z' end-period: '2015-12-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4676013488 dns-udp-queries-received-ipv6: 568505965 dns-tcp-queries-received-ipv4: 115520268 dns-tcp-queries-received-ipv6: 2757295 dns-udp-responses-sent-ipv4: 4418506223 dns-udp-responses-sent-ipv6: 570410234 dns-tcp-responses-sent-ipv4: 104333409 dns-tcp-responses-sent-ipv6: 313688