--- service: j.root-servers.net start-period: '2017-01-09T00:00:00Z' end-period: '2017-01-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9595398364 dns-udp-queries-received-ipv6: 810191126 dns-tcp-queries-received-ipv4: 426300765 dns-tcp-queries-received-ipv6: 16170425 dns-udp-responses-sent-ipv4: 9188484117 dns-udp-responses-sent-ipv6: 798454773 dns-tcp-responses-sent-ipv4: 322392987 dns-tcp-responses-sent-ipv6: 16943675