--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5574775153 dns-udp-queries-received-ipv6: 1359074975 dns-tcp-queries-received-ipv4: 307330050 dns-tcp-queries-received-ipv6: 102807955 dns-udp-responses-sent-ipv4: 5571580454 dns-udp-responses-sent-ipv6: 1387310285 dns-tcp-responses-sent-ipv4: 294442127 dns-tcp-responses-sent-ipv6: 102893919