--- service: a.root-servers.net start-period: '2016-03-03T00:00:00Z' end-period: '2016-03-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4057641212 dns-udp-queries-received-ipv6: 344579343 dns-tcp-queries-received-ipv4: 31531065 dns-tcp-queries-received-ipv6: 3281335 dns-udp-responses-sent-ipv4: 4043669982 dns-udp-responses-sent-ipv6: 344896109 dns-tcp-responses-sent-ipv4: 26357594 dns-tcp-responses-sent-ipv6: 265783