--- service: j.root-servers.net start-period: '2015-02-09T00:00:00Z' end-period: '2015-02-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3143512364 dns-udp-queries-received-ipv6: 280651637 dns-tcp-queries-received-ipv4: 28129145 dns-tcp-queries-received-ipv6: 4697254 dns-udp-responses-sent-ipv4: 3154289026 dns-udp-responses-sent-ipv6: 280644766 dns-tcp-responses-sent-ipv4: 28161773 dns-tcp-responses-sent-ipv6: 4512657