--- service: d.root-servers.net start-period: '2016-04-16T00:00:00Z' end-period: '2016-04-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3976468484 dns-udp-queries-received-ipv6: 610316021 dns-tcp-queries-received-ipv4: 31795497 dns-tcp-queries-received-ipv6: 575608 dns-udp-responses-sent-ipv4: 3954640133 dns-udp-responses-sent-ipv6: 610026894 dns-tcp-responses-sent-ipv4: 31768871 dns-tcp-responses-sent-ipv6: 575597