--- service: j.root-servers.net start-period: '2014-04-19T00:00:00Z' end-period: '2014-04-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2393470734 dns-udp-queries-received-ipv6: 195420130 dns-tcp-queries-received-ipv4: 20900285 dns-tcp-queries-received-ipv6: 4637331 dns-udp-responses-sent-ipv4: 2365528478 dns-udp-responses-sent-ipv6: 195299153 dns-tcp-responses-sent-ipv4: 19107788 dns-tcp-responses-sent-ipv6: 182