--- service: a.root-servers.net start-period: '2015-08-05T00:00:00Z' end-period: '2015-08-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4780721206 dns-udp-queries-received-ipv6: 278515664 dns-tcp-queries-received-ipv4: 19765598 dns-tcp-queries-received-ipv6: 9864904 dns-udp-responses-sent-ipv4: 4809385145 dns-udp-responses-sent-ipv6: 280887108 dns-tcp-responses-sent-ipv4: 16654042 dns-tcp-responses-sent-ipv6: 8196772