--- service: j.root-servers.net start-period: '2016-09-19T00:00:00Z' end-period: '2016-09-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6510821994 dns-udp-queries-received-ipv6: 687165962 dns-tcp-queries-received-ipv4: 165375831 dns-tcp-queries-received-ipv6: 5112664 dns-udp-responses-sent-ipv4: 6394702887 dns-udp-responses-sent-ipv6: 687878613 dns-tcp-responses-sent-ipv4: 136838613 dns-tcp-responses-sent-ipv6: 3611910