--- service: a.root-servers.net start-period: '2014-04-24T00:00:00Z' end-period: '2014-04-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2443528900 dns-udp-queries-received-ipv6: 133513325 dns-tcp-queries-received-ipv4: 12832219 dns-tcp-queries-received-ipv6: 1378944 dns-udp-responses-sent-ipv4: 2442727567 dns-udp-responses-sent-ipv6: 133431878 dns-tcp-responses-sent-ipv4: 12806085 dns-tcp-responses-sent-ipv6: 135