--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-10T00:00:00Z' dns-udp-queries-received-ipv4: 2217249262 dns-udp-queries-received-ipv6: 558247027 dns-tcp-queries-received-ipv4: 50393369 dns-tcp-queries-received-ipv6: 12715993 dns-udp-responses-sent-ipv4: 2199731090 dns-udp-responses-sent-ipv6: 557771513 dns-tcp-responses-sent-ipv4: 50048004 dns-tcp-responses-sent-ipv6: 12720389