--- service: a.root-servers.net start-period: '2016-05-29T00:00:00Z' end-period: '2016-05-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5565840114 dns-udp-queries-received-ipv6: 359758870 dns-tcp-queries-received-ipv4: 65381527 dns-tcp-queries-received-ipv6: 4768103 dns-udp-responses-sent-ipv4: 5565790445 dns-udp-responses-sent-ipv6: 359507969 dns-tcp-responses-sent-ipv4: 55080385 dns-tcp-responses-sent-ipv6: 333018