--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-27T00:00:00Z' dns-udp-queries-received-ipv4: 2249101024 dns-udp-queries-received-ipv6: 544135721 dns-tcp-queries-received-ipv4: 44944339 dns-tcp-queries-received-ipv6: 14698201 dns-udp-responses-sent-ipv4: 2245942988 dns-udp-responses-sent-ipv6: 543699420 dns-tcp-responses-sent-ipv4: 42588154 dns-tcp-responses-sent-ipv6: 14074038