--- service: j.root-servers.net start-period: '2014-01-28T00:00:00Z' end-period: '2014-01-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2821930138 dns-udp-queries-received-ipv6: 228065164 dns-tcp-queries-received-ipv4: 25011414 dns-tcp-queries-received-ipv6: 4297511 dns-udp-responses-sent-ipv4: 2813001464 dns-udp-responses-sent-ipv6: 228058666 dns-tcp-responses-sent-ipv4: 23309139 dns-tcp-responses-sent-ipv6: 228