--- service: j.root-servers.net start-period: '2016-12-16T00:00:00Z' end-period: '2016-12-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6737450138 dns-udp-queries-received-ipv6: 647798965 dns-tcp-queries-received-ipv4: 238634187 dns-tcp-queries-received-ipv6: 12944211 dns-udp-responses-sent-ipv4: 6574905822 dns-udp-responses-sent-ipv6: 652259262 dns-tcp-responses-sent-ipv4: 208135002 dns-tcp-responses-sent-ipv6: 13088722