--- service: a.root-servers.net start-period: '2016-02-03T00:00:00Z' end-period: '2016-02-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3728266424 dns-udp-queries-received-ipv6: 310570767 dns-tcp-queries-received-ipv4: 55445382 dns-tcp-queries-received-ipv6: 1784252 dns-udp-responses-sent-ipv4: 3718366949 dns-udp-responses-sent-ipv6: 265771756 dns-tcp-responses-sent-ipv4: 47417030 dns-tcp-responses-sent-ipv6: 196586