--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-07-28T00:00:00Z' dns-udp-queries-received-ipv4: 2671854835 dns-udp-queries-received-ipv6: 559614634 dns-tcp-queries-received-ipv4: 64669391 dns-tcp-queries-received-ipv6: 17602282 dns-udp-responses-sent-ipv4: 2637422169 dns-udp-responses-sent-ipv6: 559129407 dns-tcp-responses-sent-ipv4: 44219949 dns-tcp-responses-sent-ipv6: 11924877