--- service: a.root-servers.net start-period: '2014-03-17T00:00:00Z' end-period: '2014-03-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2193488563 dns-udp-queries-received-ipv6: 87548557 dns-tcp-queries-received-ipv4: 11199717 dns-tcp-queries-received-ipv6: 1215790 dns-udp-responses-sent-ipv4: 2167706965 dns-udp-responses-sent-ipv6: 87514523 dns-tcp-responses-sent-ipv4: 11257100 dns-tcp-responses-sent-ipv6: 114