--- service: j.root-servers.net start-period: '2014-05-31T00:00:00Z' end-period: '2014-05-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3638934091 dns-udp-queries-received-ipv6: 244744854 dns-tcp-queries-received-ipv4: 28426732 dns-tcp-queries-received-ipv6: 5063287 dns-udp-responses-sent-ipv4: 3660817543 dns-udp-responses-sent-ipv6: 244551237 dns-tcp-responses-sent-ipv4: 28091692 dns-tcp-responses-sent-ipv6: 2055027