--- service: a.root-servers.net start-period: '2014-05-22T00:00:00Z' end-period: '2014-05-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2459398824 dns-udp-queries-received-ipv6: 113299974 dns-tcp-queries-received-ipv4: 13359084 dns-tcp-queries-received-ipv6: 962941 dns-udp-responses-sent-ipv4: 2458706444 dns-udp-responses-sent-ipv6: 113268809 dns-tcp-responses-sent-ipv4: 13365054 dns-tcp-responses-sent-ipv6: 70209