--- service: a.root-servers.net start-period: '2014-07-02T00:00:00Z' end-period: '2014-07-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2234156521 dns-udp-queries-received-ipv6: 123515222 dns-tcp-queries-received-ipv4: 16863003 dns-tcp-queries-received-ipv6: 877778 dns-udp-responses-sent-ipv4: 2233957781 dns-udp-responses-sent-ipv6: 123506842 dns-tcp-responses-sent-ipv4: 16750419 dns-tcp-responses-sent-ipv6: 498091