--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-04-09T00:00:00Z dns-udp-queries-received-ipv4: 3807424540 dns-udp-queries-received-ipv6: 1011688182 dns-tcp-queries-received-ipv4: 117345192 dns-tcp-queries-received-ipv6: 66680608 dns-udp-responses-sent-ipv4: 3796910763 dns-udp-responses-sent-ipv6: 1011537768 dns-tcp-responses-sent-ipv4: 119262352 dns-tcp-responses-sent-ipv6: 68406458