--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-12-01T00:00:00Z' dns-udp-queries-received-ipv4: 2703821020 dns-udp-queries-received-ipv6: 449520471 dns-tcp-queries-received-ipv4: 94822487 dns-tcp-queries-received-ipv6: 36302142 dns-udp-responses-sent-ipv4: 2660611582 dns-udp-responses-sent-ipv6: 448527112 dns-tcp-responses-sent-ipv4: 55832832 dns-tcp-responses-sent-ipv6: 23393236