--- service: a.root-servers.net start-period: '2016-09-25T00:00:00Z' end-period: '2016-09-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4685577016 dns-udp-queries-received-ipv6: 417656640 dns-tcp-queries-received-ipv4: 108285998 dns-tcp-queries-received-ipv6: 5067995 dns-udp-responses-sent-ipv4: 4600846959 dns-udp-responses-sent-ipv6: 417567246 dns-tcp-responses-sent-ipv4: 108584551 dns-tcp-responses-sent-ipv6: 5110431