--- service: a.root-servers.net start-period: '2014-03-28T00:00:00Z' end-period: '2014-03-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2376385843 dns-udp-queries-received-ipv6: 87342204 dns-tcp-queries-received-ipv4: 11631349 dns-tcp-queries-received-ipv6: 898337 dns-udp-responses-sent-ipv4: 2373601150 dns-udp-responses-sent-ipv6: 87307119 dns-tcp-responses-sent-ipv4: 11639452 dns-tcp-responses-sent-ipv6: 115