--- service: i.root-servers.net start-period: '2016-03-29T00:00:00Z' end-period: '2016-03-30T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5250032944 dns-udp-queries-received-ipv6: 433553839 dns-tcp-queries-received-ipv4: 22129561 dns-tcp-queries-received-ipv6: 862662 dns-udp-responses-sent-ipv4: 5118302199 dns-udp-responses-sent-ipv6: 443453061 dns-tcp-responses-sent-ipv4: 20744508 dns-tcp-responses-sent-ipv6: 871236