--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-07-10T00:00:00Z' dns-udp-queries-received-ipv4: 3121154403 dns-udp-queries-received-ipv6: 604162695 dns-tcp-queries-received-ipv4: 68354765 dns-tcp-queries-received-ipv6: 16318653 dns-udp-responses-sent-ipv4: 3077932472 dns-udp-responses-sent-ipv6: 603373522 dns-tcp-responses-sent-ipv4: 44517509 dns-tcp-responses-sent-ipv6: 10160281