--- service: a.root-servers.net start-period: '2017-03-03T00:00:00Z' end-period: '2017-03-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4754218744 dns-udp-queries-received-ipv6: 487953162 dns-tcp-queries-received-ipv4: 185819831 dns-tcp-queries-received-ipv6: 8965493 dns-udp-responses-sent-ipv4: 4751568695 dns-udp-responses-sent-ipv6: 487857807 dns-tcp-responses-sent-ipv4: 186224174 dns-tcp-responses-sent-ipv6: 9039505