--- service: j.root-servers.net start-period: '2015-01-09T00:00:00Z' end-period: '2015-01-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3265333043 dns-udp-queries-received-ipv6: 255175881 dns-tcp-queries-received-ipv4: 31068904 dns-tcp-queries-received-ipv6: 5689716 dns-udp-responses-sent-ipv4: 3271328819 dns-udp-responses-sent-ipv6: 255157929 dns-tcp-responses-sent-ipv4: 31221558 dns-tcp-responses-sent-ipv6: 4833850