--- service: a.root-servers.net start-period: '2014-03-22T00:00:00Z' end-period: '2014-03-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1960482048 dns-udp-queries-received-ipv6: 81634322 dns-tcp-queries-received-ipv4: 10326265 dns-tcp-queries-received-ipv6: 789048 dns-udp-responses-sent-ipv4: 1929304596 dns-udp-responses-sent-ipv6: 81608784 dns-tcp-responses-sent-ipv4: 10294573 dns-tcp-responses-sent-ipv6: 119