--- service: a.root-servers.net start-period: '2016-05-30T00:00:00Z' end-period: '2016-05-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5855344639 dns-udp-queries-received-ipv6: 391495179 dns-tcp-queries-received-ipv4: 74142305 dns-tcp-queries-received-ipv6: 5087268 dns-udp-responses-sent-ipv4: 5855118723 dns-udp-responses-sent-ipv6: 391256942 dns-tcp-responses-sent-ipv4: 62579058 dns-tcp-responses-sent-ipv6: 321103