--- service: d.root-servers.net start-period: '2016-04-12T00:00:00Z' end-period: '2016-04-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4526993306 dns-udp-queries-received-ipv6: 627584881 dns-tcp-queries-received-ipv4: 38568824 dns-tcp-queries-received-ipv6: 606022 dns-udp-responses-sent-ipv4: 4507326678 dns-udp-responses-sent-ipv6: 627295620 dns-tcp-responses-sent-ipv4: 38488380 dns-tcp-responses-sent-ipv6: 606003