--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-22T00:00:00Z' dns-udp-queries-received-ipv4: 3328471920 dns-udp-queries-received-ipv6: 759858884 dns-tcp-queries-received-ipv4: 140748669 dns-tcp-queries-received-ipv6: 62092379 dns-udp-responses-sent-ipv4: 3179523115 dns-udp-responses-sent-ipv6: 741051693 dns-tcp-responses-sent-ipv4: 126862150 dns-tcp-responses-sent-ipv6: 61132994