--- version: rssac002v3 service: a.root-servers.net start-period: '2021-06-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4963280570 dns-udp-queries-received-ipv6: 1245508458 dns-tcp-queries-received-ipv4: 273919465 dns-tcp-queries-received-ipv6: 86846743 dns-udp-responses-sent-ipv4: 4811759999 dns-udp-responses-sent-ipv6: 1243362413 dns-tcp-responses-sent-ipv4: 266385987 dns-tcp-responses-sent-ipv6: 86678922