--- service: a.root-servers.net start-period: '2014-03-23T00:00:00Z' end-period: '2014-03-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1928540483 dns-udp-queries-received-ipv6: 80849146 dns-tcp-queries-received-ipv4: 9984579 dns-tcp-queries-received-ipv6: 808851 dns-udp-responses-sent-ipv4: 1899806791 dns-udp-responses-sent-ipv6: 80824977 dns-tcp-responses-sent-ipv4: 9941424 dns-tcp-responses-sent-ipv6: 116