--- service: a.root-servers.net start-period: '2014-07-11T00:00:00Z' end-period: '2014-07-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2463904062 dns-udp-queries-received-ipv6: 158798721 dns-tcp-queries-received-ipv4: 24778343 dns-tcp-queries-received-ipv6: 1407476 dns-udp-responses-sent-ipv4: 2463722855 dns-udp-responses-sent-ipv6: 158787086 dns-tcp-responses-sent-ipv4: 24869005 dns-tcp-responses-sent-ipv6: 472055