--- service: j.root-servers.net start-period: '2016-06-18T00:00:00Z' end-period: '2016-06-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5440779881 dns-udp-queries-received-ipv6: 399046749 dns-tcp-queries-received-ipv4: 122736669 dns-tcp-queries-received-ipv6: 4663895 dns-udp-responses-sent-ipv4: 5337123773 dns-udp-responses-sent-ipv6: 403796803 dns-tcp-responses-sent-ipv4: 114850396 dns-tcp-responses-sent-ipv6: 2598342