--- service: j.root-servers.net start-period: '2017-02-04T00:00:00Z' end-period: '2017-02-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6363367475 dns-udp-queries-received-ipv6: 664985489 dns-tcp-queries-received-ipv4: 164749724 dns-tcp-queries-received-ipv6: 11994927 dns-udp-responses-sent-ipv4: 6274069408 dns-udp-responses-sent-ipv6: 668015492 dns-tcp-responses-sent-ipv4: 153381195 dns-tcp-responses-sent-ipv6: 12126183