--- service: i.root-servers.net start-period: '2016-03-04T00:00:00Z' end-period: '2016-03-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5112633021 dns-udp-queries-received-ipv6: 428294763 dns-tcp-queries-received-ipv4: 15067615 dns-tcp-queries-received-ipv6: 1163960 dns-udp-responses-sent-ipv4: 5073036292 dns-udp-responses-sent-ipv6: 432822276 dns-tcp-responses-sent-ipv4: 14971283 dns-tcp-responses-sent-ipv6: 1165848