--- service: j.root-servers.net start-period: '2016-01-15T00:00:00Z' end-period: '2016-01-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4583980664 dns-udp-queries-received-ipv6: 530357078 dns-tcp-queries-received-ipv4: 115689050 dns-tcp-queries-received-ipv6: 1904142 dns-udp-responses-sent-ipv4: 4293291861 dns-udp-responses-sent-ipv6: 534006074 dns-tcp-responses-sent-ipv4: 98799763 dns-tcp-responses-sent-ipv6: 320419