--- service: j.root-servers.net start-period: '2017-02-23T00:00:00Z' end-period: '2017-02-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6768307231 dns-udp-queries-received-ipv6: 680256732 dns-tcp-queries-received-ipv4: 196331887 dns-tcp-queries-received-ipv6: 12388998 dns-udp-responses-sent-ipv4: 6639142997 dns-udp-responses-sent-ipv6: 683393579 dns-tcp-responses-sent-ipv4: 167704221 dns-tcp-responses-sent-ipv6: 12534458