--- service: j.root-servers.net start-period: '2016-12-20T00:00:00Z' end-period: '2016-12-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6786295651 dns-udp-queries-received-ipv6: 625935617 dns-tcp-queries-received-ipv4: 229827075 dns-tcp-queries-received-ipv6: 11562542 dns-udp-responses-sent-ipv4: 6624711272 dns-udp-responses-sent-ipv6: 630805499 dns-tcp-responses-sent-ipv4: 201546698 dns-tcp-responses-sent-ipv6: 11593754