--- version: rssac002v3 service: a.root-servers.net start-period: '2021-06-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5484372742 dns-udp-queries-received-ipv6: 1391995985 dns-tcp-queries-received-ipv4: 331477455 dns-tcp-queries-received-ipv6: 108706006 dns-udp-responses-sent-ipv4: 5313000546 dns-udp-responses-sent-ipv6: 1389357516 dns-tcp-responses-sent-ipv4: 321751516 dns-tcp-responses-sent-ipv6: 108506278