--- service: j.root-servers.net start-period: '2014-01-15T00:00:00Z' end-period: '2014-01-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3020953655 dns-udp-queries-received-ipv6: 180115107 dns-tcp-queries-received-ipv4: 24709758 dns-tcp-queries-received-ipv6: 4255424 dns-udp-responses-sent-ipv4: 2956375366 dns-udp-responses-sent-ipv6: 179975665 dns-tcp-responses-sent-ipv4: 22940165 dns-tcp-responses-sent-ipv6: 237