--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-18T00:00:00Z' dns-udp-queries-received-ipv4: 2195226897 dns-udp-queries-received-ipv6: 505799515 dns-tcp-queries-received-ipv4: 42139660 dns-tcp-queries-received-ipv6: 13473047 dns-udp-responses-sent-ipv4: 2187887735 dns-udp-responses-sent-ipv6: 504765941 dns-tcp-responses-sent-ipv4: 38979643 dns-tcp-responses-sent-ipv6: 12732131