--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-07-20T00:00:00Z' dns-udp-queries-received-ipv4: 2853209616 dns-udp-queries-received-ipv6: 583225356 dns-tcp-queries-received-ipv4: 70269737 dns-tcp-queries-received-ipv6: 16247087 dns-udp-responses-sent-ipv4: 2816336612 dns-udp-responses-sent-ipv6: 582397034 dns-tcp-responses-sent-ipv4: 42439622 dns-tcp-responses-sent-ipv6: 10366704