--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-03-06T00:00:00Z' dns-udp-queries-received-ipv4: 2559759108 dns-udp-queries-received-ipv6: 478571333 dns-tcp-queries-received-ipv4: 43157776 dns-tcp-queries-received-ipv6: 12139793 dns-udp-responses-sent-ipv4: 2539103015 dns-udp-responses-sent-ipv6: 476325224 dns-tcp-responses-sent-ipv4: 39941308 dns-tcp-responses-sent-ipv6: 11466401