--- service: a.root-servers.net start-period: '2015-03-26T00:00:00Z' end-period: '2015-03-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2867877143 dns-udp-queries-received-ipv6: 241621126 dns-tcp-queries-received-ipv4: 20707552 dns-tcp-queries-received-ipv6: 2161921 dns-udp-responses-sent-ipv4: 2856321277 dns-udp-responses-sent-ipv6: 241068538 dns-tcp-responses-sent-ipv4: 17169063 dns-tcp-responses-sent-ipv6: 1170775