--- service: i.root-servers.net start-period: '2015-12-02T00:00:00Z' end-period: '2015-12-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4887268674 dns-udp-queries-received-ipv6: 365239087 dns-tcp-queries-received-ipv4: 29080695 dns-tcp-queries-received-ipv6: 907538 dns-udp-responses-sent-ipv4: 4831658418 dns-udp-responses-sent-ipv6: 367572837 dns-tcp-responses-sent-ipv4: 28979686 dns-tcp-responses-sent-ipv6: 911332