--- service: a.root-servers.net start-period: '2014-07-13T00:00:00Z' end-period: '2014-07-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1686662871 dns-udp-queries-received-ipv6: 109581614 dns-tcp-queries-received-ipv4: 12914614 dns-tcp-queries-received-ipv6: 1158725 dns-udp-responses-sent-ipv4: 1686400425 dns-udp-responses-sent-ipv6: 109572950 dns-tcp-responses-sent-ipv4: 12955735 dns-tcp-responses-sent-ipv6: 473044