--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-02-04T00:00:00Z' dns-udp-queries-received-ipv4: 2433721782 dns-udp-queries-received-ipv6: 491306991 dns-tcp-queries-received-ipv4: 48292754 dns-tcp-queries-received-ipv6: 13779569 dns-udp-responses-sent-ipv4: 2430543099 dns-udp-responses-sent-ipv6: 490692344 dns-tcp-responses-sent-ipv4: 45886577 dns-tcp-responses-sent-ipv6: 13242841