--- service: j.root-servers.net start-period: '2015-01-23T00:00:00Z' end-period: '2015-01-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3323805136 dns-udp-queries-received-ipv6: 275033599 dns-tcp-queries-received-ipv4: 30622154 dns-tcp-queries-received-ipv6: 5569574 dns-udp-responses-sent-ipv4: 3326670857 dns-udp-responses-sent-ipv6: 275041466 dns-tcp-responses-sent-ipv4: 30705864 dns-tcp-responses-sent-ipv6: 4829812