--- service: a.root-servers.net start-period: '2014-09-13T00:00:00Z' end-period: '2014-09-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1882167232 dns-udp-queries-received-ipv6: 139791233 dns-tcp-queries-received-ipv4: 12155547 dns-tcp-queries-received-ipv6: 1699098 dns-udp-responses-sent-ipv4: 1885196936 dns-udp-responses-sent-ipv6: 139922671 dns-tcp-responses-sent-ipv4: 11596168 dns-tcp-responses-sent-ipv6: 1049133