--- service: j.root-servers.net start-period: '2017-02-02T00:00:00Z' end-period: '2017-02-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6277116341 dns-udp-queries-received-ipv6: 632653452 dns-tcp-queries-received-ipv4: 169512603 dns-tcp-queries-received-ipv6: 12930484 dns-udp-responses-sent-ipv4: 6166000612 dns-udp-responses-sent-ipv6: 635983954 dns-tcp-responses-sent-ipv4: 156066923 dns-tcp-responses-sent-ipv6: 13073604