--- service: a.root-servers.net start-period: '2014-03-15T00:00:00Z' end-period: '2014-03-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1879527260 dns-udp-queries-received-ipv6: 81043482 dns-tcp-queries-received-ipv4: 9450880 dns-tcp-queries-received-ipv6: 1113727 dns-udp-responses-sent-ipv4: 1846422718 dns-udp-responses-sent-ipv6: 81017641 dns-tcp-responses-sent-ipv4: 9490068 dns-tcp-responses-sent-ipv6: 110