--- service: j.root-servers.net start-period: '2014-01-23T00:00:00Z' end-period: '2014-01-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3008418836 dns-udp-queries-received-ipv6: 212019587 dns-tcp-queries-received-ipv4: 25010448 dns-tcp-queries-received-ipv6: 4045329 dns-udp-responses-sent-ipv4: 2952565090 dns-udp-responses-sent-ipv6: 212022877 dns-tcp-responses-sent-ipv4: 24154073 dns-tcp-responses-sent-ipv6: 243