--- service: a.root-servers.net start-period: '2017-03-06T00:00:00Z' end-period: '2017-03-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 11187945978 dns-udp-queries-received-ipv6: 1126074676 dns-tcp-queries-received-ipv4: 499901207 dns-tcp-queries-received-ipv6: 16657304 dns-udp-responses-sent-ipv4: 11104548422 dns-udp-responses-sent-ipv6: 1115675342 dns-tcp-responses-sent-ipv4: 492604108 dns-tcp-responses-sent-ipv6: 17570038