--- version: rssac002v4 service: d.root-servers.net start-period: 2021-01-31T00:00:00Z end-period: 2021-01-31T23:59:59Z metric: traffic-volume dns-udp-queries-received-ipv4: 5498317184 dns-udp-queries-received-ipv6: 1630944318 dns-tcp-queries-received-ipv4: 188893876 dns-tcp-queries-received-ipv6: 105564412 dns-udp-responses-sent-ipv4: 5498274857 dns-udp-responses-sent-ipv6: 1630897553 dns-tcp-responses-sent-ipv4: 188797111 dns-tcp-responses-sent-ipv6: 105410036