--- service: j.root-servers.net start-period: '2015-01-27T00:00:00Z' end-period: '2015-01-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3163044612 dns-udp-queries-received-ipv6: 278753133 dns-tcp-queries-received-ipv4: 26723291 dns-tcp-queries-received-ipv6: 4427626 dns-udp-responses-sent-ipv4: 3174521414 dns-udp-responses-sent-ipv6: 278741590 dns-tcp-responses-sent-ipv4: 27024341 dns-tcp-responses-sent-ipv6: 3607446