--- version: rssac002v3 service: a.root-servers.net start-period: '2021-02-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5938907883 dns-udp-queries-received-ipv6: 1195021103 dns-tcp-queries-received-ipv4: 297993612 dns-tcp-queries-received-ipv6: 106263620 dns-udp-responses-sent-ipv4: 5745162976 dns-udp-responses-sent-ipv6: 1193467606 dns-tcp-responses-sent-ipv4: 287331815 dns-tcp-responses-sent-ipv6: 106819402