--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-03-23T00:00:00Z' dns-udp-queries-received-ipv4: 2341764848 dns-udp-queries-received-ipv6: 428340121 dns-tcp-queries-received-ipv4: 46758570 dns-tcp-queries-received-ipv6: 12375164 dns-udp-responses-sent-ipv4: 2305652038 dns-udp-responses-sent-ipv6: 426648492 dns-tcp-responses-sent-ipv4: 43657488 dns-tcp-responses-sent-ipv6: 11744123