--- service: d.root-servers.net start-period: '2015-12-02T00:00:00Z' end-period: '2015-12-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4380402048 dns-udp-queries-received-ipv6: 426832803 dns-tcp-queries-received-ipv4: 22640791 dns-tcp-queries-received-ipv6: 636546 dns-udp-responses-sent-ipv4: 4356890446 dns-udp-responses-sent-ipv6: 426480547 dns-tcp-responses-sent-ipv4: 22376882 dns-tcp-responses-sent-ipv6: 635783