--- service: a.root-servers.net start-period: '2014-07-16T00:00:00Z' end-period: '2014-07-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2025305152 dns-udp-queries-received-ipv6: 139179243 dns-tcp-queries-received-ipv4: 24246275 dns-tcp-queries-received-ipv6: 1295999 dns-udp-responses-sent-ipv4: 2025235282 dns-udp-responses-sent-ipv6: 139204151 dns-tcp-responses-sent-ipv4: 24363435 dns-tcp-responses-sent-ipv6: 484115