--- service: j.root-servers.net start-period: '2017-01-18T00:00:00Z' end-period: '2017-01-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6486902808 dns-udp-queries-received-ipv6: 631387346 dns-tcp-queries-received-ipv4: 176042004 dns-tcp-queries-received-ipv6: 14296561 dns-udp-responses-sent-ipv4: 6267735755 dns-udp-responses-sent-ipv6: 635541498 dns-tcp-responses-sent-ipv4: 165576748 dns-tcp-responses-sent-ipv6: 14409455