--- service: a.root-servers.net start-period: '2016-06-02T00:00:00Z' end-period: '2016-06-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5906043942 dns-udp-queries-received-ipv6: 424401050 dns-tcp-queries-received-ipv4: 84043503 dns-tcp-queries-received-ipv6: 5338997 dns-udp-responses-sent-ipv4: 5905838085 dns-udp-responses-sent-ipv6: 423944162 dns-tcp-responses-sent-ipv4: 71336434 dns-tcp-responses-sent-ipv6: 306604