--- service: j.root-servers.net start-period: '2017-01-16T00:00:00Z' end-period: '2017-01-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6405105363 dns-udp-queries-received-ipv6: 636259141 dns-tcp-queries-received-ipv4: 177900098 dns-tcp-queries-received-ipv6: 14011112 dns-udp-responses-sent-ipv4: 6190015150 dns-udp-responses-sent-ipv6: 640200494 dns-tcp-responses-sent-ipv4: 167727758 dns-tcp-responses-sent-ipv6: 14128607