--- service: a.root-servers.net start-period: '2016-03-14T00:00:00Z' end-period: '2016-03-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4296828745 dns-udp-queries-received-ipv6: 371034404 dns-tcp-queries-received-ipv4: 29252529 dns-tcp-queries-received-ipv6: 4207927 dns-udp-responses-sent-ipv4: 4280375605 dns-udp-responses-sent-ipv6: 372062320 dns-tcp-responses-sent-ipv4: 25125933 dns-tcp-responses-sent-ipv6: 281073