--- service: a.root-servers.net start-period: '2014-01-26T00:00:00Z' end-period: '2014-01-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1006656534 dns-udp-queries-received-ipv6: 54864055 dns-tcp-queries-received-ipv4: 5504388 dns-tcp-queries-received-ipv6: 1078769 dns-udp-responses-sent-ipv4: 1006725724 dns-udp-responses-sent-ipv6: 54845251 dns-tcp-responses-sent-ipv4: 5519923 dns-tcp-responses-sent-ipv6: 117