--- service: i.root-servers.net start-period: '2015-07-06T00:00:00Z' end-period: '2015-07-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3648152355 dns-udp-queries-received-ipv6: 261576020 dns-tcp-queries-received-ipv4: 10937793 dns-tcp-queries-received-ipv6: 275442 dns-udp-responses-sent-ipv4: 3606906761 dns-udp-responses-sent-ipv6: 261541821 dns-tcp-responses-sent-ipv4: 10830297 dns-tcp-responses-sent-ipv6: 275741