--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-31T00:00:00Z' dns-udp-queries-received-ipv4: 3638774090 dns-udp-queries-received-ipv6: 709808889 dns-tcp-queries-received-ipv4: 182578186 dns-tcp-queries-received-ipv6: 54686664 dns-udp-responses-sent-ipv4: 3386531233 dns-udp-responses-sent-ipv6: 708963753 dns-tcp-responses-sent-ipv4: 164210772 dns-tcp-responses-sent-ipv6: 53249697