--- service: a.root-servers.net start-period: '2016-11-26T00:00:00Z' end-period: '2016-11-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4244320509 dns-udp-queries-received-ipv6: 405709717 dns-tcp-queries-received-ipv4: 176435197 dns-tcp-queries-received-ipv6: 9507510 dns-udp-responses-sent-ipv4: 4228789958 dns-udp-responses-sent-ipv6: 405518554 dns-tcp-responses-sent-ipv4: 176918947 dns-tcp-responses-sent-ipv6: 9534942