--- service: a.root-servers.net start-period: '2014-06-12T00:00:00Z' end-period: '2014-06-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1789622787 dns-udp-queries-received-ipv6: 118199491 dns-tcp-queries-received-ipv4: 9566613 dns-tcp-queries-received-ipv6: 1180744 dns-udp-responses-sent-ipv4: 1789343434 dns-udp-responses-sent-ipv6: 118223422 dns-tcp-responses-sent-ipv4: 9669343 dns-tcp-responses-sent-ipv6: 393996