--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-12-20T00:00:00Z dns-udp-queries-received-ipv4: 3155949181 dns-udp-queries-received-ipv6: 677245164 dns-tcp-queries-received-ipv4: 56452263 dns-tcp-queries-received-ipv6: 20645677 dns-udp-responses-sent-ipv4: 3153064483 dns-udp-responses-sent-ipv6: 676984766 dns-tcp-responses-sent-ipv4: 57900013 dns-tcp-responses-sent-ipv6: 21485470