--- service: a.root-servers.net start-period: '2016-04-05T00:00:00Z' end-period: '2016-04-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5582365988 dns-udp-queries-received-ipv6: 355439685 dns-tcp-queries-received-ipv4: 62509483 dns-tcp-queries-received-ipv6: 3331305 dns-udp-responses-sent-ipv4: 5555609424 dns-udp-responses-sent-ipv6: 354961779 dns-tcp-responses-sent-ipv4: 47962718 dns-tcp-responses-sent-ipv6: 270099