--- service: a.root-servers.net start-period: '2014-09-04T00:00:00Z' end-period: '2014-09-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1954245784 dns-udp-queries-received-ipv6: 147192322 dns-tcp-queries-received-ipv4: 13359123 dns-tcp-queries-received-ipv6: 1910771 dns-udp-responses-sent-ipv4: 1953888217 dns-udp-responses-sent-ipv6: 147191065 dns-tcp-responses-sent-ipv4: 12445675 dns-tcp-responses-sent-ipv6: 967081