--- service: d.root-servers.net start-period: '2016-03-01T00:00:00Z' end-period: '2016-03-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4417472045 dns-udp-queries-received-ipv6: 500515328 dns-tcp-queries-received-ipv4: 26218859 dns-tcp-queries-received-ipv6: 1157148 dns-udp-responses-sent-ipv4: 4393671921 dns-udp-responses-sent-ipv6: 500217653 dns-tcp-responses-sent-ipv4: 26173328 dns-tcp-responses-sent-ipv6: 1157068