--- service: a.root-servers.net start-period: '2014-09-23T00:00:00Z' end-period: '2014-09-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2701590318 dns-udp-queries-received-ipv6: 176606689 dns-tcp-queries-received-ipv4: 16450175 dns-tcp-queries-received-ipv6: 1733527 dns-udp-responses-sent-ipv4: 2702290159 dns-udp-responses-sent-ipv6: 176570263 dns-tcp-responses-sent-ipv4: 15612696 dns-tcp-responses-sent-ipv6: 1095598