--- service: a.root-servers.net start-period: '2016-12-28T00:00:00Z' end-period: '2016-12-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4366044994 dns-udp-queries-received-ipv6: 469137655 dns-tcp-queries-received-ipv4: 172315039 dns-tcp-queries-received-ipv6: 7471025 dns-udp-responses-sent-ipv4: 4363314932 dns-udp-responses-sent-ipv6: 468788236 dns-tcp-responses-sent-ipv4: 173465491 dns-tcp-responses-sent-ipv6: 7484196