--- service: a.root-servers.net start-period: '2014-01-12T00:00:00Z' end-period: '2014-01-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1276042299 dns-udp-queries-received-ipv6: 43333681 dns-tcp-queries-received-ipv4: 6424055 dns-tcp-queries-received-ipv6: 1046674 dns-udp-responses-sent-ipv4: 1275609726 dns-udp-responses-sent-ipv6: 43325384 dns-tcp-responses-sent-ipv4: 6414536 dns-tcp-responses-sent-ipv6: 62