--- service: j.root-servers.net start-period: '2017-01-28T00:00:00Z' end-period: '2017-01-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5676850782 dns-udp-queries-received-ipv6: 619620872 dns-tcp-queries-received-ipv4: 140851566 dns-tcp-queries-received-ipv6: 10857164 dns-udp-responses-sent-ipv4: 5597025867 dns-udp-responses-sent-ipv6: 622666702 dns-tcp-responses-sent-ipv4: 130532527 dns-tcp-responses-sent-ipv6: 10965119