--- service: a.root-servers.net start-period: '2014-01-14T00:00:00Z' end-period: '2014-01-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1310826240 dns-udp-queries-received-ipv6: 42923018 dns-tcp-queries-received-ipv4: 7569310 dns-tcp-queries-received-ipv6: 1115783 dns-udp-responses-sent-ipv4: 1308178660 dns-udp-responses-sent-ipv6: 42917056 dns-tcp-responses-sent-ipv4: 7555866 dns-tcp-responses-sent-ipv6: 61