--- service: j.root-servers.net start-period: '2015-01-06T00:00:00Z' end-period: '2015-01-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3468371381 dns-udp-queries-received-ipv6: 247140565 dns-tcp-queries-received-ipv4: 27905010 dns-tcp-queries-received-ipv6: 5679704 dns-udp-responses-sent-ipv4: 3498222426 dns-udp-responses-sent-ipv6: 247111687 dns-tcp-responses-sent-ipv4: 28496849 dns-tcp-responses-sent-ipv6: 4835846