--- service: a.root-servers.net start-period: '2016-08-08T00:00:00Z' end-period: '2016-08-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4206339188 dns-udp-queries-received-ipv6: 490066600 dns-tcp-queries-received-ipv4: 94024673 dns-tcp-queries-received-ipv6: 5158517 dns-udp-responses-sent-ipv4: 4204535515 dns-udp-responses-sent-ipv6: 490026595 dns-tcp-responses-sent-ipv4: 85715943 dns-tcp-responses-sent-ipv6: 3471654