--- service: j.root-servers.net start-period: '2015-02-20T00:00:00Z' end-period: '2015-02-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2944207582 dns-udp-queries-received-ipv6: 332939573 dns-tcp-queries-received-ipv4: 26081962 dns-tcp-queries-received-ipv6: 4157082 dns-udp-responses-sent-ipv4: 2943281207 dns-udp-responses-sent-ipv6: 333043732 dns-tcp-responses-sent-ipv4: 25763300 dns-tcp-responses-sent-ipv6: 3488502