--- service: a.root-servers.net start-period: '2014-01-23T00:00:00Z' end-period: '2014-01-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1327258192 dns-udp-queries-received-ipv6: 47617808 dns-tcp-queries-received-ipv4: 7260795 dns-tcp-queries-received-ipv6: 1087550 dns-udp-responses-sent-ipv4: 1327278285 dns-udp-responses-sent-ipv6: 47599949 dns-tcp-responses-sent-ipv4: 7293664 dns-tcp-responses-sent-ipv6: 48