--- service: a.root-servers.net start-period: '2015-08-03T00:00:00Z' end-period: '2015-08-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4477289183 dns-udp-queries-received-ipv6: 277275916 dns-tcp-queries-received-ipv4: 18904379 dns-tcp-queries-received-ipv6: 9713921 dns-udp-responses-sent-ipv4: 4503124755 dns-udp-responses-sent-ipv6: 279792512 dns-tcp-responses-sent-ipv4: 15976199 dns-tcp-responses-sent-ipv6: 8109022