--- service: a.root-servers.net start-period: '2017-01-24T00:00:00Z' end-period: '2017-01-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4696247452 dns-udp-queries-received-ipv6: 489819663 dns-tcp-queries-received-ipv4: 136836752 dns-tcp-queries-received-ipv6: 8536228 dns-udp-responses-sent-ipv4: 4692998562 dns-udp-responses-sent-ipv6: 489627946 dns-tcp-responses-sent-ipv4: 137270629 dns-tcp-responses-sent-ipv6: 8547023