--- service: j.root-servers.net start-period: '2015-12-24T00:00:00Z' end-period: '2015-12-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3388525589 dns-udp-queries-received-ipv6: 527207570 dns-tcp-queries-received-ipv4: 75583511 dns-tcp-queries-received-ipv6: 1795694 dns-udp-responses-sent-ipv4: 3309179721 dns-udp-responses-sent-ipv6: 530714188 dns-tcp-responses-sent-ipv4: 65653832 dns-tcp-responses-sent-ipv6: 274665