--- version: rssac002v3 service: a.root-servers.net start-period: '2021-02-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5808233879 dns-udp-queries-received-ipv6: 1197437128 dns-tcp-queries-received-ipv4: 292518984 dns-tcp-queries-received-ipv6: 106520422 dns-udp-responses-sent-ipv4: 5615944181 dns-udp-responses-sent-ipv6: 1196023909 dns-tcp-responses-sent-ipv4: 280906133 dns-tcp-responses-sent-ipv6: 107029205