--- service: i.root-servers.net start-period: '2015-05-05T00:00:00Z' end-period: '2015-05-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3822067532 dns-udp-queries-received-ipv6: 261307452 dns-tcp-queries-received-ipv4: 10423838 dns-tcp-queries-received-ipv6: 290869 dns-udp-responses-sent-ipv4: 3763201895 dns-udp-responses-sent-ipv6: 264440089 dns-tcp-responses-sent-ipv4: 10495534 dns-tcp-responses-sent-ipv6: 295384