--- service: j.root-servers.net start-period: '2015-01-12T00:00:00Z' end-period: '2015-01-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4477873042 dns-udp-queries-received-ipv6: 299837539 dns-tcp-queries-received-ipv4: 54388498 dns-tcp-queries-received-ipv6: 6352859 dns-udp-responses-sent-ipv4: 4527421275 dns-udp-responses-sent-ipv6: 299790572 dns-tcp-responses-sent-ipv4: 56956303 dns-tcp-responses-sent-ipv6: 5238073