--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-10T00:00:00Z' dns-udp-queries-received-ipv4: 2159623088 dns-udp-queries-received-ipv6: 489717505 dns-tcp-queries-received-ipv4: 44710717 dns-tcp-queries-received-ipv6: 15467497 dns-udp-responses-sent-ipv4: 2156319425 dns-udp-responses-sent-ipv6: 489263795 dns-tcp-responses-sent-ipv4: 42143253 dns-tcp-responses-sent-ipv6: 14756668