--- service: j.root-servers.net start-period: '2015-12-07T00:00:00Z' end-period: '2015-12-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4749056728 dns-udp-queries-received-ipv6: 554859800 dns-tcp-queries-received-ipv4: 121444439 dns-tcp-queries-received-ipv6: 2058664 dns-udp-responses-sent-ipv4: 4429439802 dns-udp-responses-sent-ipv6: 559851694 dns-tcp-responses-sent-ipv4: 109280828 dns-tcp-responses-sent-ipv6: 322779