--- service: i.root-servers.net start-period: '2016-03-25T00:00:00Z' end-period: '2016-03-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4631341321 dns-udp-queries-received-ipv6: 416303058 dns-tcp-queries-received-ipv4: 23963614 dns-tcp-queries-received-ipv6: 824084 dns-udp-responses-sent-ipv4: 4539355969 dns-udp-responses-sent-ipv6: 427744150 dns-tcp-responses-sent-ipv4: 23200519 dns-tcp-responses-sent-ipv6: 831563