--- service: a.root-servers.net start-period: '2015-03-03T00:00:00Z' end-period: '2015-03-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2982077567 dns-udp-queries-received-ipv6: 225372207 dns-tcp-queries-received-ipv4: 16737184 dns-tcp-queries-received-ipv6: 2180784 dns-udp-responses-sent-ipv4: 2965132441 dns-udp-responses-sent-ipv6: 224616808 dns-tcp-responses-sent-ipv4: 14223630 dns-tcp-responses-sent-ipv6: 1411699