--- service: a.root-servers.net start-period: '2015-08-24T00:00:00Z' end-period: '2015-08-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4187214923 dns-udp-queries-received-ipv6: 204909338 dns-tcp-queries-received-ipv4: 16871895 dns-tcp-queries-received-ipv6: 8351893 dns-udp-responses-sent-ipv4: 4214256776 dns-udp-responses-sent-ipv6: 207807768 dns-tcp-responses-sent-ipv4: 14084268 dns-tcp-responses-sent-ipv6: 6973803