--- service: a.root-servers.net start-period: '2016-11-27T00:00:00Z' end-period: '2016-11-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4206408184 dns-udp-queries-received-ipv6: 408518448 dns-tcp-queries-received-ipv4: 175683557 dns-tcp-queries-received-ipv6: 9689931 dns-udp-responses-sent-ipv4: 4190737643 dns-udp-responses-sent-ipv6: 408304052 dns-tcp-responses-sent-ipv4: 176571821 dns-tcp-responses-sent-ipv6: 9716329