--- service: j.root-servers.net start-period: '2015-05-29T00:00:00Z' end-period: '2015-05-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3367264422 dns-udp-queries-received-ipv6: 310167328 dns-tcp-queries-received-ipv4: 29640716 dns-tcp-queries-received-ipv6: 6745139 dns-udp-responses-sent-ipv4: 3309204129 dns-udp-responses-sent-ipv6: 310041845 dns-tcp-responses-sent-ipv4: 28956809 dns-tcp-responses-sent-ipv6: 4337907