--- service: j.root-servers.net start-period: '2016-12-25T00:00:00Z' end-period: '2016-12-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5518030718 dns-udp-queries-received-ipv6: 589743575 dns-tcp-queries-received-ipv4: 162626746 dns-tcp-queries-received-ipv6: 10440791 dns-udp-responses-sent-ipv4: 5422150245 dns-udp-responses-sent-ipv6: 593277894 dns-tcp-responses-sent-ipv4: 151340591 dns-tcp-responses-sent-ipv6: 10447267