--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5277369546 dns-udp-queries-received-ipv6: 1482152722 dns-tcp-queries-received-ipv4: 303036049 dns-tcp-queries-received-ipv6: 139346382 dns-udp-responses-sent-ipv4: 5246130012 dns-udp-responses-sent-ipv6: 1521749456 dns-tcp-responses-sent-ipv4: 292945793 dns-tcp-responses-sent-ipv6: 143924913