--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-14T00:00:00Z' dns-udp-queries-received-ipv4: 2276771834 dns-udp-queries-received-ipv6: 531754040 dns-tcp-queries-received-ipv4: 42282217 dns-tcp-queries-received-ipv6: 14154949 dns-udp-responses-sent-ipv4: 2253328458 dns-udp-responses-sent-ipv6: 530820448 dns-tcp-responses-sent-ipv4: 39338547 dns-tcp-responses-sent-ipv6: 13424692