--- service: j.root-servers.net start-period: '2014-03-21T00:00:00Z' end-period: '2014-03-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2846779044 dns-udp-queries-received-ipv6: 215615766 dns-tcp-queries-received-ipv4: 22785555 dns-tcp-queries-received-ipv6: 3478720 dns-udp-responses-sent-ipv4: 2770155122 dns-udp-responses-sent-ipv6: 215429545 dns-tcp-responses-sent-ipv4: 21029336 dns-tcp-responses-sent-ipv6: 625