--- service: j.root-servers.net start-period: '2014-02-01T00:00:00Z' end-period: '2014-02-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2344957546 dns-udp-queries-received-ipv6: 163793024 dns-tcp-queries-received-ipv4: 22047636 dns-tcp-queries-received-ipv6: 3829734 dns-udp-responses-sent-ipv4: 2337868166 dns-udp-responses-sent-ipv6: 163687043 dns-tcp-responses-sent-ipv4: 20298450 dns-tcp-responses-sent-ipv6: 173