--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-02T00:00:00Z' dns-udp-queries-received-ipv4: 1969465342 dns-udp-queries-received-ipv6: 467803834 dns-tcp-queries-received-ipv4: 39260861 dns-tcp-queries-received-ipv6: 14526404 dns-udp-responses-sent-ipv4: 1967280191 dns-udp-responses-sent-ipv6: 467507214 dns-tcp-responses-sent-ipv4: 36705866 dns-tcp-responses-sent-ipv6: 13751498