--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-02-11T00:00:00Z' dns-udp-queries-received-ipv4: 2382453777 dns-udp-queries-received-ipv6: 529297477 dns-tcp-queries-received-ipv4: 43482106 dns-tcp-queries-received-ipv6: 12669612 dns-udp-responses-sent-ipv4: 2368773954 dns-udp-responses-sent-ipv6: 527682459 dns-tcp-responses-sent-ipv4: 40149351 dns-tcp-responses-sent-ipv6: 11961462