--- service: a.root-servers.net start-period: '2014-05-13T00:00:00Z' end-period: '2014-05-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2265102898 dns-udp-queries-received-ipv6: 79749585 dns-tcp-queries-received-ipv4: 11931867 dns-tcp-queries-received-ipv6: 1034297 dns-udp-responses-sent-ipv4: 2264430635 dns-udp-responses-sent-ipv6: 79672999 dns-tcp-responses-sent-ipv4: 11906840 dns-tcp-responses-sent-ipv6: 80