--- service: j.root-servers.net start-period: '2015-10-15T00:00:00Z' end-period: '2015-10-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4141951780 dns-udp-queries-received-ipv6: 9330716 dns-tcp-queries-received-ipv4: 69177754 dns-tcp-queries-received-ipv6: 6730587 dns-udp-responses-sent-ipv4: 4051130957 dns-udp-responses-sent-ipv6: 8472130 dns-tcp-responses-sent-ipv4: 66698296 dns-tcp-responses-sent-ipv6: 7124109