--- service: j.root-servers.net start-period: '2014-09-20T00:00:00Z' end-period: '2014-09-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2693543412 dns-udp-queries-received-ipv6: 195496318 dns-tcp-queries-received-ipv4: 25427407 dns-tcp-queries-received-ipv6: 3013879 dns-udp-responses-sent-ipv4: 2685361433 dns-udp-responses-sent-ipv6: 195224574 dns-tcp-responses-sent-ipv4: 25848266 dns-tcp-responses-sent-ipv6: 2647879