--- service: j.root-servers.net start-period: '2016-02-19T00:00:00Z' end-period: '2016-02-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5756721147 dns-udp-queries-received-ipv6: 596124733 dns-tcp-queries-received-ipv4: 130786847 dns-tcp-queries-received-ipv6: 3202953 dns-udp-responses-sent-ipv4: 5231478420 dns-udp-responses-sent-ipv6: 595606865 dns-tcp-responses-sent-ipv4: 114723728 dns-tcp-responses-sent-ipv6: 401410