--- service: d.root-servers.net start-period: '2016-04-02T00:00:00Z' end-period: '2016-04-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4303954613 dns-udp-queries-received-ipv6: 559942361 dns-tcp-queries-received-ipv4: 35641797 dns-tcp-queries-received-ipv6: 517640 dns-udp-responses-sent-ipv4: 4280750707 dns-udp-responses-sent-ipv6: 559680786 dns-tcp-responses-sent-ipv4: 35591209 dns-tcp-responses-sent-ipv6: 517620