--- service: a.root-servers.net start-period: '2014-03-18T00:00:00Z' end-period: '2014-03-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2308874989 dns-udp-queries-received-ipv6: 91049623 dns-tcp-queries-received-ipv4: 11661995 dns-tcp-queries-received-ipv6: 1216094 dns-udp-responses-sent-ipv4: 2281381153 dns-udp-responses-sent-ipv6: 91018076 dns-tcp-responses-sent-ipv4: 11729063 dns-tcp-responses-sent-ipv6: 125