--- service: a.root-servers.net start-period: '2016-01-24T00:00:00Z' end-period: '2016-01-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3845835511 dns-udp-queries-received-ipv6: 254857787 dns-tcp-queries-received-ipv4: 61026364 dns-tcp-queries-received-ipv6: 1996740 dns-udp-responses-sent-ipv4: 3921043690 dns-udp-responses-sent-ipv6: 305768795 dns-tcp-responses-sent-ipv4: 52460101 dns-tcp-responses-sent-ipv6: 288294