--- service: a.root-servers.net start-period: '2016-02-12T00:00:00Z' end-period: '2016-02-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5063000762 dns-udp-queries-received-ipv6: 357697171 dns-tcp-queries-received-ipv4: 69338185 dns-tcp-queries-received-ipv6: 2004509 dns-udp-responses-sent-ipv4: 5055098562 dns-udp-responses-sent-ipv6: 358734952 dns-tcp-responses-sent-ipv4: 59458557 dns-tcp-responses-sent-ipv6: 282294