--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-22T00:00:00Z' dns-udp-queries-received-ipv4: 2997361905 dns-udp-queries-received-ipv6: 581664871 dns-tcp-queries-received-ipv4: 68551785 dns-tcp-queries-received-ipv6: 17912865 dns-udp-responses-sent-ipv4: 2956065586 dns-udp-responses-sent-ipv6: 581182931 dns-tcp-responses-sent-ipv4: 40928899 dns-tcp-responses-sent-ipv6: 10641418