--- service: a.root-servers.net start-period: '2016-07-08T00:00:00Z' end-period: '2016-07-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4358833991 dns-udp-queries-received-ipv6: 525410188 dns-tcp-queries-received-ipv4: 67609970 dns-tcp-queries-received-ipv6: 7304579 dns-udp-responses-sent-ipv4: 4356219242 dns-udp-responses-sent-ipv6: 525446620 dns-tcp-responses-sent-ipv4: 55916299 dns-tcp-responses-sent-ipv6: 757402