--- service: a.root-servers.net start-period: '2015-11-14T00:00:00Z' end-period: '2015-11-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3228170304 dns-udp-queries-received-ipv6: 292337433 dns-tcp-queries-received-ipv4: 17814081 dns-tcp-queries-received-ipv6: 1868134 dns-udp-responses-sent-ipv4: 3221835784 dns-udp-responses-sent-ipv6: 291840952 dns-tcp-responses-sent-ipv4: 15587057 dns-tcp-responses-sent-ipv6: 264727