--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5543295327 dns-udp-queries-received-ipv6: 1030149579 dns-tcp-queries-received-ipv4: 280075522 dns-tcp-queries-received-ipv6: 102176917 dns-udp-responses-sent-ipv4: 5385679212 dns-udp-responses-sent-ipv6: 1027804870 dns-tcp-responses-sent-ipv4: 270951504 dns-tcp-responses-sent-ipv6: 102628679