--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-04-08T00:00:00Z dns-udp-queries-received-ipv4: 3931254141 dns-udp-queries-received-ipv6: 1010449379 dns-tcp-queries-received-ipv4: 119947299 dns-tcp-queries-received-ipv6: 67754707 dns-udp-responses-sent-ipv4: 3919277182 dns-udp-responses-sent-ipv6: 1010317250 dns-tcp-responses-sent-ipv4: 122214938 dns-tcp-responses-sent-ipv6: 69691212